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词汇 lunate
释义

Definition of lunate in English:

lunate

adjective ˈluːneɪtˈluneɪt
  • Crescent-shaped.

    新月形的

    Example sentencesExamples
    • The lunate microsporophylls and densely packed sporangia are consistent with the morphology of other noeggerathialean cones, such as Discinites Feistmanlel.
    • The aft section is a freely flooded articulated robot tail which is terminated with a lunate caudal fin.
    • It has derived frontal and temporal lobes and a lunate sulcus in a derived position, which are consistent with capabilities for higher cognitive processing.
    • Tellingly, a structure called the lunate sulcus was pushed toward the back of her brain, as it is in H. sapiens's, leaving more space for areas involved in advanced association, forward planning, and problem solving.
    • It is supported by a narrow lunate platform along the dorsal margin.
noun ˈluːneɪtˈluneɪt
  • 1Archaeology
    A crescent-shaped prehistoric stone implement.

    〔考古〕(史前的)半月形工具

    Example sentencesExamples
    • Neolithic tools like points, trapezes and lunates made of chert and chalcedony, besides stone querns and grinders, decorated bone objects, pieces of ochre and human burials were also found here.
    • Blank production is the same as in the earlier assemblages technically, but among the microlith tools there are also trapezes and lunates in in addition to the triangles.
    • The lunates, barely a centimeter in length, were hafted onto shafts as transverse arrowheads, as documented by contemporary Egyptian finds.
    • The association of lunates and stone polishers in two of the burials found at the site is also significant.
    • It is only in the rock-shelter area, B, that we have classic lunates, here residuals in neolithic levels.
  • 2Anatomy
    A crescent-shaped carpal bone situated in the centre of the wrist and articulating with the radius.

    〔剖〕月骨

    Example sentencesExamples
    • Disruption of the ligaments attached to the lunate leads to these different types of dislocation.
    • The proximal row of carpal bones includes the scaphoid, lunate, triquetrum, and pisiform, which are closely approximated to the distal radius.
    • In prolonged cases, osteophytes may occur at the dorsal rim of the distal radius or dorsal aspects of the scaphoid or lunate.
    • The lateral view should be taken with the wrist in a neutral position in order to evaluate the alignment of the lunate with the rest of the wrist.
    • When the ulna is shorter than the radius, the lunate bone absorbs more force when the wrist is used for heavy gripping activities.

Origin

Late 18th century: from Latin lunatus, from luna 'moon'.

Definition of lunate in US English:

lunate

adjectiveˈluneɪtˈlo͞onāt
  • Crescent-shaped.

    新月形的

    Example sentencesExamples
    • It has derived frontal and temporal lobes and a lunate sulcus in a derived position, which are consistent with capabilities for higher cognitive processing.
    • It is supported by a narrow lunate platform along the dorsal margin.
    • The aft section is a freely flooded articulated robot tail which is terminated with a lunate caudal fin.
    • The lunate microsporophylls and densely packed sporangia are consistent with the morphology of other noeggerathialean cones, such as Discinites Feistmanlel.
    • Tellingly, a structure called the lunate sulcus was pushed toward the back of her brain, as it is in H. sapiens's, leaving more space for areas involved in advanced association, forward planning, and problem solving.
nounˈluneɪtˈlo͞onāt
Anatomy
  • A crescent-shaped carpal bone situated in the center of the wrist and articulating with the radius.

    〔剖〕月骨

    Example sentencesExamples
    • When the ulna is shorter than the radius, the lunate bone absorbs more force when the wrist is used for heavy gripping activities.
    • Disruption of the ligaments attached to the lunate leads to these different types of dislocation.
    • The proximal row of carpal bones includes the scaphoid, lunate, triquetrum, and pisiform, which are closely approximated to the distal radius.
    • In prolonged cases, osteophytes may occur at the dorsal rim of the distal radius or dorsal aspects of the scaphoid or lunate.
    • The lateral view should be taken with the wrist in a neutral position in order to evaluate the alignment of the lunate with the rest of the wrist.

Origin

Late 18th century: from Latin lunatus, from luna ‘moon’.

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