Definition of lacuna in English:

lacuna

nounPlural lacunae, Plural lacunas ləˈkjuːnələˈk(j)unə

1An unfilled space; a gap.
空白，空隙
the journal has filled a lacuna in Middle Eastern studies
该杂志填补了中东研究的一项空白。
Example sentencesExamples
- Nevertheless, whatever the terminology employed, the fact remains that gaps or lacunae have been filled by resort to those principles.
- Fill the lacunae in your inspiration by tidily copying out what you have already written.
- He has suggested that the time may now be ripe for the passage of a Council regulation to cope with the existing lacunae of Community law on state aids.
- If the lacuna is to be filled, Parliament must do it, not the Courts.
- Lance Hill's book is the first full account of the group and fills a major lacuna in the history of the era and the movement.
- The new book by Don Coerver and Linda Hall, Tangled Destinies: Latin America and the United States will go a long way to fill this lacunae.
- Despite this concern, the duo remain extremely adept at creating lacunae at the heart of their music, spaces into which you can project your own feelings and memories.
- In order for some course of action to count as one of my alternatives, it must be a course of action that I would regard as possible even if all such mistakes had been corrected, and all the relevant lacunae in my knowledge filled.
- In this provocative study, Newhauser fills a lacuna in historical scholarship even as he provides insight for the nonhistorian.
- There are many lacunae in the existing laws of the land, he said.
- Marg's new book is an attempt to fill the lacuna, and comes 25 years after an earlier study titled Homage to Jaipur.
- The interesting thing with pattern, to take the metaphor of the weaving one step further, is that given an overview of a pattern we can fill in the lacunae, and at times we only need a fragment to apprehend the whole.
- It is precisely in this area that the present study has attempted to fill an important lacuna in the research literature on abstinence-based pregnancy prevention programs.
- However, this important work need not be justified on the basis of its filling a lacuna in past literature.
- Thorne's work fills an obvious lacuna in British social history.
- With many European metal bands not choosing to incorporate folkish melodies, there existed a lacuna waiting to be filled.
- Wolf-Wendel and her colleagues fill an important lacuna in the literature, examining dual-career policies from the perspective of institutions and policy makers rather than the individuals who utilize them.
- This reasoning in the Minister's speech, if it is legitimate to refer to it at all, does not show that the new section filled a lacuna in the previous statute.
- Thus, divergent growth apparently prompted offsetting, in order for the coral to maintain the lacuna and occupy the space around it.
- This volume, with contributions by some of the leading scholars in the field, seeks to fill in the lacunae in both areas.
Synonyms
gap, space, absence, lack, deficiency, blank
1. 1.1 A missing portion in a book or manuscript.
  （书或原稿中的）脱漏
  Example sentencesExamples
  From the preserved lines of the inscription in column III the length of the line can be established; the size of the lacunas are accordingly indicated in the text.
  In her attempts to reconstruct her past Searle was confronted by the lacunae in the archives, which are mute on the histories of the disempowered: the stories of slaves and women who forego their names, are mostly absent.
  Here are the prophetic calculations of this manuscript, with lacunae inserted within square brackets.
  Unfortunately, the only evidence that the inscription provides for identifying the father of Flavia Menandra is his gentilicium and a lacuna of nine or ten letters for his cognomen.
  In fact, the book's lacunae are in some cases not inconsiderable.
  The editorial file I examined has some obvious lacunae and is very thin on letters from Pynchon (someone probably filched them, alas).
  Moreover, they have produced a body of poetry that is significantly midrashic, exploring the lacunae in biblical texts and developing poems that give voice to women like Sarah, Hagar, Dinah, and Lilith.
  Gossett also addresses lacunas in the manuscript, suggesting that they may have involved some form of censorship (perhaps self-censorship).
  It is to be hoped that any subsequent revision will address these lacunae.
  Rather, this gap must be seen as a serious lacuna in the surviving texts, a gulf that will critically limit our analysis.
  The finance ministry has set up a monitoring mechanism to make chartered accountants acting as auditors accountable for any lacunae in the tax audit reports submitted by an assessee.
  Because of this lacuna, Frickenhaus posited that the text originally described the figure as being by Lysippos.
  As often bedevils the translator's task there appears to be at least one lacuna in the extant text, but it was relatively painless to decipher.
  Also like Mailer, his text is such a distillation of references and revelations that nearly every page has an asterisked lacuna; a story within a story which is frequently a gem.
2Anatomy
A cavity or depression, especially in bone.
〔剖〕（尤指骨）腔隙，陷窝
Example sentencesExamples
- Interestingly, the positive cells and associated debris were mainly located within lacunae, indicating that most lytically infected cells were phagocytosed by the infiltrated macrophages.
- In some areas, the stromal cells appeared to reside within lacunae embedded in a hyalinized matrix, focally producing a remarkable similarity to chondroblastoma.
- In the present study, we showed that lymphoma cells latently infected with EBV were abundant in all cases of African endemic BL, and their distribution was not associated with that of the lacunae.
- Elastic fibers are often concentrated in the walls of lacunae, which house cartilage cells.
- In case 2, urography showed a lacuna of the renal pelvis, and CT scan showed an irregular thickening of the renal pelvis.
Synonyms
hollow, indentation, dent, dint, cavity, concavity, dip, pit, hole, pothole, sink, sinkhole, excavation, trough, crater

Derivatives

lacunal

adjective

The ties of a patchy, lacunal and tragic memory begin to interweave the Italy of the ‘years of lead’ and that of Berlusconi.
Example sentencesExamples
- Results of isotopic measurements of below - ground, lacunal and emitted methane indicate that methane is transported from rice predominantly via molecular diffusion with a small component due to transpiration induced bulk flow.
- I had hoped to demonstrate it by injection of the lacunal system, but the attempts were unsuccessful.
- The very premise of the novel relies on this sense of a missing cause, giving the story a lacunal effect.
- Although evasion from the water surface arises from dissolved gaseous mercury in the water column, incubation studies on sediment and lacunal gas data both suggested that the source of Hg flux from vegetation was in the sediment.

lacunary

adjective ˈlakjʊn(ə)ri

Having gaps or missing portions.
the lacunary nature of recollected experience
Example sentencesExamples
- both the index and the bibliography are lacunary
- We find asymptotics for lacunary sums of binomial coefficients.
- Simon approaches the lacunary nature of recollected experience from a variety of angles, most impressively by describing the tramway and its driver - le wattman - with stunningly precise realism.
- Soon after his arrival in America, however, certain studies of lacunary series which Paley had already begun suggested a new attack on the theory of interpolation and allied trigonometrical problems.

lacunate

adjective

They may be elongated, swollen in the middle and tapering towards the blade or they may form a bulbous float containing air-filled lacunate tissue.
Example sentencesExamples
- The lacunate gleba appears in section to be formed of large to small shallow holes or chambers, which are more or less identical in shape, and are typically only rarely exposed.
- Phellem appears similar to the primary aerenchyma seen in aquatic roots of species of Ludwigia L.; however, similar lacunate tissue in extant Decodon verticillatus (L.) Ell. is secondary and this study shows this tissue to be homologous to that seen in the fossil Decodon J.F. Gmel.
- Collenchyma of this type is called lacunate collenchyma.

lacunose

adjective

In the Middle and Late Silurian odd specializations, like lacunose septa and complex septal formations in the body chamber, develop.
Example sentencesExamples
- Lines 1672-73 of Agamemnon are lacunose.
- In such specimens it will be seen that the hymenium has become highly convoluted or lacunose.
- Over the last few years Paul has developed his own ‘lacunose’ technique for building up leather collages directly on the boards of the book.
- Where there is some uncertainty about how a partially lacunose word should be restored, the uncertain letters are placed within brackets.

Origin

Mid 17th century: from Latin, 'pool', from lacus 'lake'.

Rhymes

crooner, harpooner, lacunar, lampooner, Luna, lunar, mizuna, Oona, oppugner, Poona, pruner, puna, schooner, spooner, Tristan da Cunha, tuna, tuner, Una, vicuña, yokozuna

Definition of lacuna in US English:

lacuna

nounləˈk(j)unələˈk(y)o͞onə

1An unfilled space or interval; a gap.
空白，空隙
the journal has filled a lacuna in Middle Eastern studies
该杂志填补了中东研究的一项空白。
Example sentencesExamples
- It is precisely in this area that the present study has attempted to fill an important lacuna in the research literature on abstinence-based pregnancy prevention programs.
- Thus, divergent growth apparently prompted offsetting, in order for the coral to maintain the lacuna and occupy the space around it.
- If the lacuna is to be filled, Parliament must do it, not the Courts.
- In this provocative study, Newhauser fills a lacuna in historical scholarship even as he provides insight for the nonhistorian.
- Nevertheless, whatever the terminology employed, the fact remains that gaps or lacunae have been filled by resort to those principles.
- Wolf-Wendel and her colleagues fill an important lacuna in the literature, examining dual-career policies from the perspective of institutions and policy makers rather than the individuals who utilize them.
- In order for some course of action to count as one of my alternatives, it must be a course of action that I would regard as possible even if all such mistakes had been corrected, and all the relevant lacunae in my knowledge filled.
- Lance Hill's book is the first full account of the group and fills a major lacuna in the history of the era and the movement.
- Thorne's work fills an obvious lacuna in British social history.
- There are many lacunae in the existing laws of the land, he said.
- However, this important work need not be justified on the basis of its filling a lacuna in past literature.
- With many European metal bands not choosing to incorporate folkish melodies, there existed a lacuna waiting to be filled.
- This volume, with contributions by some of the leading scholars in the field, seeks to fill in the lacunae in both areas.
- The new book by Don Coerver and Linda Hall, Tangled Destinies: Latin America and the United States will go a long way to fill this lacunae.
- The interesting thing with pattern, to take the metaphor of the weaving one step further, is that given an overview of a pattern we can fill in the lacunae, and at times we only need a fragment to apprehend the whole.
- He has suggested that the time may now be ripe for the passage of a Council regulation to cope with the existing lacunae of Community law on state aids.
- This reasoning in the Minister's speech, if it is legitimate to refer to it at all, does not show that the new section filled a lacuna in the previous statute.
- Fill the lacunae in your inspiration by tidily copying out what you have already written.
- Marg's new book is an attempt to fill the lacuna, and comes 25 years after an earlier study titled Homage to Jaipur.
- Despite this concern, the duo remain extremely adept at creating lacunae at the heart of their music, spaces into which you can project your own feelings and memories.
Synonyms
gap, space, absence, lack, deficiency, blank
1. 1.1 A missing portion in a book or manuscript.
  （书或原稿中的）脱漏
  Example sentencesExamples
  Unfortunately, the only evidence that the inscription provides for identifying the father of Flavia Menandra is his gentilicium and a lacuna of nine or ten letters for his cognomen.
  As often bedevils the translator's task there appears to be at least one lacuna in the extant text, but it was relatively painless to decipher.
  Rather, this gap must be seen as a serious lacuna in the surviving texts, a gulf that will critically limit our analysis.
  Gossett also addresses lacunas in the manuscript, suggesting that they may have involved some form of censorship (perhaps self-censorship).
  It is to be hoped that any subsequent revision will address these lacunae.
  Here are the prophetic calculations of this manuscript, with lacunae inserted within square brackets.
  The finance ministry has set up a monitoring mechanism to make chartered accountants acting as auditors accountable for any lacunae in the tax audit reports submitted by an assessee.
  From the preserved lines of the inscription in column III the length of the line can be established; the size of the lacunas are accordingly indicated in the text.
  Moreover, they have produced a body of poetry that is significantly midrashic, exploring the lacunae in biblical texts and developing poems that give voice to women like Sarah, Hagar, Dinah, and Lilith.
  In fact, the book's lacunae are in some cases not inconsiderable.
  Also like Mailer, his text is such a distillation of references and revelations that nearly every page has an asterisked lacuna; a story within a story which is frequently a gem.
  The editorial file I examined has some obvious lacunae and is very thin on letters from Pynchon (someone probably filched them, alas).
  Because of this lacuna, Frickenhaus posited that the text originally described the figure as being by Lysippos.
  In her attempts to reconstruct her past Searle was confronted by the lacunae in the archives, which are mute on the histories of the disempowered: the stories of slaves and women who forego their names, are mostly absent.
2. 1.2Anatomy A cavity or depression, especially in bone.
  〔剖〕（尤指骨）腔隙，陷窝
  Example sentencesExamples
  In case 2, urography showed a lacuna of the renal pelvis, and CT scan showed an irregular thickening of the renal pelvis.
  In the present study, we showed that lymphoma cells latently infected with EBV were abundant in all cases of African endemic BL, and their distribution was not associated with that of the lacunae.
  Interestingly, the positive cells and associated debris were mainly located within lacunae, indicating that most lytically infected cells were phagocytosed by the infiltrated macrophages.
  Elastic fibers are often concentrated in the walls of lacunae, which house cartilage cells.
  In some areas, the stromal cells appeared to reside within lacunae embedded in a hyalinized matrix, focally producing a remarkable similarity to chondroblastoma.
  Synonyms
  hollow, indentation, dent, dint, cavity, concavity, dip, pit, hole, pothole, sink, sinkhole, excavation, trough, crater

Origin

Mid 17th century: from Latin, ‘pool’, from lacus ‘lake’.

词汇	lacuna
释义	Definition of lacuna in English: lacuna nounPlural lacunae, Plural lacunas ləˈkjuːnələˈk(j)unə 1An unfilled space; a gap. 空白，空隙 the journal has filled a lacuna in Middle Eastern studies 该杂志填补了中东研究的一项空白。 Example sentencesExamples Nevertheless, whatever the terminology employed, the fact remains that gaps or lacunae have been filled by resort to those principles. Fill the lacunae in your inspiration by tidily copying out what you have already written. He has suggested that the time may now be ripe for the passage of a Council regulation to cope with the existing lacunae of Community law on state aids. If the lacuna is to be filled, Parliament must do it, not the Courts. Lance Hill's book is the first full account of the group and fills a major lacuna in the history of the era and the movement. The new book by Don Coerver and Linda Hall, Tangled Destinies: Latin America and the United States will go a long way to fill this lacunae. Despite this concern, the duo remain extremely adept at creating lacunae at the heart of their music, spaces into which you can project your own feelings and memories. In order for some course of action to count as one of my alternatives, it must be a course of action that I would regard as possible even if all such mistakes had been corrected, and all the relevant lacunae in my knowledge filled. In this provocative study, Newhauser fills a lacuna in historical scholarship even as he provides insight for the nonhistorian. There are many lacunae in the existing laws of the land, he said. Marg's new book is an attempt to fill the lacuna, and comes 25 years after an earlier study titled Homage to Jaipur. The interesting thing with pattern, to take the metaphor of the weaving one step further, is that given an overview of a pattern we can fill in the lacunae, and at times we only need a fragment to apprehend the whole. It is precisely in this area that the present study has attempted to fill an important lacuna in the research literature on abstinence-based pregnancy prevention programs. However, this important work need not be justified on the basis of its filling a lacuna in past literature. Thorne's work fills an obvious lacuna in British social history. With many European metal bands not choosing to incorporate folkish melodies, there existed a lacuna waiting to be filled. Wolf-Wendel and her colleagues fill an important lacuna in the literature, examining dual-career policies from the perspective of institutions and policy makers rather than the individuals who utilize them. This reasoning in the Minister's speech, if it is legitimate to refer to it at all, does not show that the new section filled a lacuna in the previous statute. Thus, divergent growth apparently prompted offsetting, in order for the coral to maintain the lacuna and occupy the space around it. This volume, with contributions by some of the leading scholars in the field, seeks to fill in the lacunae in both areas. Synonyms gap, space, absence, lack, deficiency, blank 1.1 A missing portion in a book or manuscript. （书或原稿中的）脱漏 Example sentencesExamples From the preserved lines of the inscription in column III the length of the line can be established; the size of the lacunas are accordingly indicated in the text. In her attempts to reconstruct her past Searle was confronted by the lacunae in the archives, which are mute on the histories of the disempowered: the stories of slaves and women who forego their names, are mostly absent. Here are the prophetic calculations of this manuscript, with lacunae inserted within square brackets. Unfortunately, the only evidence that the inscription provides for identifying the father of Flavia Menandra is his gentilicium and a lacuna of nine or ten letters for his cognomen. In fact, the book's lacunae are in some cases not inconsiderable. The editorial file I examined has some obvious lacunae and is very thin on letters from Pynchon (someone probably filched them, alas). Moreover, they have produced a body of poetry that is significantly midrashic, exploring the lacunae in biblical texts and developing poems that give voice to women like Sarah, Hagar, Dinah, and Lilith. Gossett also addresses lacunas in the manuscript, suggesting that they may have involved some form of censorship (perhaps self-censorship). It is to be hoped that any subsequent revision will address these lacunae. Rather, this gap must be seen as a serious lacuna in the surviving texts, a gulf that will critically limit our analysis. The finance ministry has set up a monitoring mechanism to make chartered accountants acting as auditors accountable for any lacunae in the tax audit reports submitted by an assessee. Because of this lacuna, Frickenhaus posited that the text originally described the figure as being by Lysippos. As often bedevils the translator's task there appears to be at least one lacuna in the extant text, but it was relatively painless to decipher. Also like Mailer, his text is such a distillation of references and revelations that nearly every page has an asterisked lacuna; a story within a story which is frequently a gem. 2Anatomy A cavity or depression, especially in bone. 〔剖〕（尤指骨）腔隙，陷窝 Example sentencesExamples Interestingly, the positive cells and associated debris were mainly located within lacunae, indicating that most lytically infected cells were phagocytosed by the infiltrated macrophages. In some areas, the stromal cells appeared to reside within lacunae embedded in a hyalinized matrix, focally producing a remarkable similarity to chondroblastoma. In the present study, we showed that lymphoma cells latently infected with EBV were abundant in all cases of African endemic BL, and their distribution was not associated with that of the lacunae. Elastic fibers are often concentrated in the walls of lacunae, which house cartilage cells. In case 2, urography showed a lacuna of the renal pelvis, and CT scan showed an irregular thickening of the renal pelvis. Synonyms hollow, indentation, dent, dint, cavity, concavity, dip, pit, hole, pothole, sink, sinkhole, excavation, trough, crater Derivatives lacunal adjective The ties of a patchy, lacunal and tragic memory begin to interweave the Italy of the ‘years of lead’ and that of Berlusconi. Example sentencesExamples Results of isotopic measurements of below - ground, lacunal and emitted methane indicate that methane is transported from rice predominantly via molecular diffusion with a small component due to transpiration induced bulk flow. I had hoped to demonstrate it by injection of the lacunal system, but the attempts were unsuccessful. The very premise of the novel relies on this sense of a missing cause, giving the story a lacunal effect. Although evasion from the water surface arises from dissolved gaseous mercury in the water column, incubation studies on sediment and lacunal gas data both suggested that the source of Hg flux from vegetation was in the sediment. lacunary adjective ˈlakjʊn(ə)ri Having gaps or missing portions. the lacunary nature of recollected experience Example sentencesExamples both the index and the bibliography are lacunary We find asymptotics for lacunary sums of binomial coefficients. Simon approaches the lacunary nature of recollected experience from a variety of angles, most impressively by describing the tramway and its driver - le wattman - with stunningly precise realism. Soon after his arrival in America, however, certain studies of lacunary series which Paley had already begun suggested a new attack on the theory of interpolation and allied trigonometrical problems. lacunate adjective They may be elongated, swollen in the middle and tapering towards the blade or they may form a bulbous float containing air-filled lacunate tissue. Example sentencesExamples The lacunate gleba appears in section to be formed of large to small shallow holes or chambers, which are more or less identical in shape, and are typically only rarely exposed. Phellem appears similar to the primary aerenchyma seen in aquatic roots of species of Ludwigia L.; however, similar lacunate tissue in extant Decodon verticillatus (L.) Ell. is secondary and this study shows this tissue to be homologous to that seen in the fossil Decodon J.F. Gmel. Collenchyma of this type is called lacunate collenchyma. lacunose adjective In the Middle and Late Silurian odd specializations, like lacunose septa and complex septal formations in the body chamber, develop. Example sentencesExamples Lines 1672-73 of Agamemnon are lacunose. In such specimens it will be seen that the hymenium has become highly convoluted or lacunose. Over the last few years Paul has developed his own ‘lacunose’ technique for building up leather collages directly on the boards of the book. Where there is some uncertainty about how a partially lacunose word should be restored, the uncertain letters are placed within brackets. Origin Mid 17th century: from Latin, 'pool', from lacus 'lake'. Rhymes crooner, harpooner, lacunar, lampooner, Luna, lunar, mizuna, Oona, oppugner, Poona, pruner, puna, schooner, spooner, Tristan da Cunha, tuna, tuner, Una, vicuña, yokozuna Definition of lacuna in US English: lacuna nounləˈk(j)unələˈk(y)o͞onə 1An unfilled space or interval; a gap. 空白，空隙 the journal has filled a lacuna in Middle Eastern studies 该杂志填补了中东研究的一项空白。 Example sentencesExamples It is precisely in this area that the present study has attempted to fill an important lacuna in the research literature on abstinence-based pregnancy prevention programs. Thus, divergent growth apparently prompted offsetting, in order for the coral to maintain the lacuna and occupy the space around it. If the lacuna is to be filled, Parliament must do it, not the Courts. In this provocative study, Newhauser fills a lacuna in historical scholarship even as he provides insight for the nonhistorian. Nevertheless, whatever the terminology employed, the fact remains that gaps or lacunae have been filled by resort to those principles. Wolf-Wendel and her colleagues fill an important lacuna in the literature, examining dual-career policies from the perspective of institutions and policy makers rather than the individuals who utilize them. In order for some course of action to count as one of my alternatives, it must be a course of action that I would regard as possible even if all such mistakes had been corrected, and all the relevant lacunae in my knowledge filled. Lance Hill's book is the first full account of the group and fills a major lacuna in the history of the era and the movement. Thorne's work fills an obvious lacuna in British social history. There are many lacunae in the existing laws of the land, he said. However, this important work need not be justified on the basis of its filling a lacuna in past literature. With many European metal bands not choosing to incorporate folkish melodies, there existed a lacuna waiting to be filled. This volume, with contributions by some of the leading scholars in the field, seeks to fill in the lacunae in both areas. The new book by Don Coerver and Linda Hall, Tangled Destinies: Latin America and the United States will go a long way to fill this lacunae. The interesting thing with pattern, to take the metaphor of the weaving one step further, is that given an overview of a pattern we can fill in the lacunae, and at times we only need a fragment to apprehend the whole. He has suggested that the time may now be ripe for the passage of a Council regulation to cope with the existing lacunae of Community law on state aids. This reasoning in the Minister's speech, if it is legitimate to refer to it at all, does not show that the new section filled a lacuna in the previous statute. Fill the lacunae in your inspiration by tidily copying out what you have already written. Marg's new book is an attempt to fill the lacuna, and comes 25 years after an earlier study titled Homage to Jaipur. Despite this concern, the duo remain extremely adept at creating lacunae at the heart of their music, spaces into which you can project your own feelings and memories. Synonyms gap, space, absence, lack, deficiency, blank 1.1 A missing portion in a book or manuscript. （书或原稿中的）脱漏 Example sentencesExamples Unfortunately, the only evidence that the inscription provides for identifying the father of Flavia Menandra is his gentilicium and a lacuna of nine or ten letters for his cognomen. As often bedevils the translator's task there appears to be at least one lacuna in the extant text, but it was relatively painless to decipher. Rather, this gap must be seen as a serious lacuna in the surviving texts, a gulf that will critically limit our analysis. Gossett also addresses lacunas in the manuscript, suggesting that they may have involved some form of censorship (perhaps self-censorship). It is to be hoped that any subsequent revision will address these lacunae. Here are the prophetic calculations of this manuscript, with lacunae inserted within square brackets. The finance ministry has set up a monitoring mechanism to make chartered accountants acting as auditors accountable for any lacunae in the tax audit reports submitted by an assessee. From the preserved lines of the inscription in column III the length of the line can be established; the size of the lacunas are accordingly indicated in the text. Moreover, they have produced a body of poetry that is significantly midrashic, exploring the lacunae in biblical texts and developing poems that give voice to women like Sarah, Hagar, Dinah, and Lilith. In fact, the book's lacunae are in some cases not inconsiderable. Also like Mailer, his text is such a distillation of references and revelations that nearly every page has an asterisked lacuna; a story within a story which is frequently a gem. The editorial file I examined has some obvious lacunae and is very thin on letters from Pynchon (someone probably filched them, alas). Because of this lacuna, Frickenhaus posited that the text originally described the figure as being by Lysippos. In her attempts to reconstruct her past Searle was confronted by the lacunae in the archives, which are mute on the histories of the disempowered: the stories of slaves and women who forego their names, are mostly absent. 1.2Anatomy A cavity or depression, especially in bone. 〔剖〕（尤指骨）腔隙，陷窝 Example sentencesExamples In case 2, urography showed a lacuna of the renal pelvis, and CT scan showed an irregular thickening of the renal pelvis. In the present study, we showed that lymphoma cells latently infected with EBV were abundant in all cases of African endemic BL, and their distribution was not associated with that of the lacunae. Interestingly, the positive cells and associated debris were mainly located within lacunae, indicating that most lytically infected cells were phagocytosed by the infiltrated macrophages. Elastic fibers are often concentrated in the walls of lacunae, which house cartilage cells. In some areas, the stromal cells appeared to reside within lacunae embedded in a hyalinized matrix, focally producing a remarkable similarity to chondroblastoma. Synonyms hollow, indentation, dent, dint, cavity, concavity, dip, pit, hole, pothole, sink, sinkhole, excavation, trough, crater Origin Mid 17th century: from Latin, ‘pool’, from lacus ‘lake’.
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