Definition of ramus in English:

ramus

nounPlural rami ˈreɪməsˈrāməs

1Anatomy
An arm or branch of a bone, in particular those of the ischium and pubes or of the jawbone.
〔剖〕（尤指坐骨和耻骨或颌骨的）支，分支
Example sentencesExamples
- The gland may extend to the mandibular ramus to cover the buccinator muscle.
- Mandibular length refers to the distance between the posterior ramus and the inner mentum.
- The section passes through the mandibular ramus.
- Sandwiched between the two jaw rami is the left splenial, which has become detached and has been displaced slightly dorsally.
- At the inferior border of the pubis the two corpora cavernosa separate, bend sharply caudally, laterally, and dorsally, and follow the inferior borders of the inferior rami of the pubic bones.
1. 1.1 A major branch of a nerve.
  （神经的）主要分支
  Example sentencesExamples
  Note the ventral and dorsal rami of cervical spinal nerves.
  A substantial portion of the nerve makes up its two communicating rami with the facial nerve; these are the strongest and most consistent of the many peripheral communications between trigeminal and facial nerves.
  The intermediate and ulnar sets of muscles are supplied by branches from the deep ramus of the radial nerve after it has passed through the supinator muscle.
2Zoology
A structure in an invertebrate that has the form of a projecting arm, typically one of two or more that are conjoined or adjacent.
〔动〕（无脊椎动物的）附肢分支
Example sentencesExamples
- Branchiopod characters include endites with setae turned backwards, the elongation of the telson, and its fluke-shaped rami.
- These include the presence of true, elongate furcal rami bearing spines in Perspicaris.
- The rami of antenna 2 have between 12 and 19 articles.
1. 2.1 A barb of a feather.
  羽支
  Example sentencesExamples
  Finger et al. and Andersson have documented that the structural UV hues of feather barbs, like other barb structural colors, are produced by the keratin air matrix of the spongy medullary layer of the barb ramus.
  That is, the main shaft of the barb, the ramus, has a branching pattern of barbules.

Derivatives

ramal

adjective ˈreɪm(ə)l

Origin

Mid 17th century: from Latin, literally 'branch'.

Definition of ramus in US English:

ramus

nounˈrāməs

1Anatomy
An arm or branch of a bone, in particular those of the ischium and pubes or of the jawbone.
〔剖〕（尤指坐骨和耻骨或颌骨的）支，分支
Example sentencesExamples
- Sandwiched between the two jaw rami is the left splenial, which has become detached and has been displaced slightly dorsally.
- The gland may extend to the mandibular ramus to cover the buccinator muscle.
- Mandibular length refers to the distance between the posterior ramus and the inner mentum.
- The section passes through the mandibular ramus.
- At the inferior border of the pubis the two corpora cavernosa separate, bend sharply caudally, laterally, and dorsally, and follow the inferior borders of the inferior rami of the pubic bones.
1. 1.1 A major branch of a nerve.
  （神经的）主要分支
  Example sentencesExamples
  The intermediate and ulnar sets of muscles are supplied by branches from the deep ramus of the radial nerve after it has passed through the supinator muscle.
  Note the ventral and dorsal rami of cervical spinal nerves.
  A substantial portion of the nerve makes up its two communicating rami with the facial nerve; these are the strongest and most consistent of the many peripheral communications between trigeminal and facial nerves.
2Zoology
A structure in an invertebrate that has the form of a projecting arm, typically one of two or more that are conjoined or adjacent.
〔动〕（无脊椎动物的）附肢分支
Example sentencesExamples
- These include the presence of true, elongate furcal rami bearing spines in Perspicaris.
- Branchiopod characters include endites with setae turned backwards, the elongation of the telson, and its fluke-shaped rami.
- The rami of antenna 2 have between 12 and 19 articles.
1. 2.1 A barb of a feather.
  羽支
  Example sentencesExamples
  That is, the main shaft of the barb, the ramus, has a branching pattern of barbules.
  Finger et al. and Andersson have documented that the structural UV hues of feather barbs, like other barb structural colors, are produced by the keratin air matrix of the spongy medullary layer of the barb ramus.

Origin

Mid 17th century: from Latin, literally ‘branch’.

词汇	ramus
释义	Definition of ramus in English: ramus nounPlural rami ˈreɪməsˈrāməs 1Anatomy An arm or branch of a bone, in particular those of the ischium and pubes or of the jawbone. 〔剖〕（尤指坐骨和耻骨或颌骨的）支，分支 Example sentencesExamples The gland may extend to the mandibular ramus to cover the buccinator muscle. Mandibular length refers to the distance between the posterior ramus and the inner mentum. The section passes through the mandibular ramus. Sandwiched between the two jaw rami is the left splenial, which has become detached and has been displaced slightly dorsally. At the inferior border of the pubis the two corpora cavernosa separate, bend sharply caudally, laterally, and dorsally, and follow the inferior borders of the inferior rami of the pubic bones. 1.1 A major branch of a nerve. （神经的）主要分支 Example sentencesExamples Note the ventral and dorsal rami of cervical spinal nerves. A substantial portion of the nerve makes up its two communicating rami with the facial nerve; these are the strongest and most consistent of the many peripheral communications between trigeminal and facial nerves. The intermediate and ulnar sets of muscles are supplied by branches from the deep ramus of the radial nerve after it has passed through the supinator muscle. 2Zoology A structure in an invertebrate that has the form of a projecting arm, typically one of two or more that are conjoined or adjacent. 〔动〕（无脊椎动物的）附肢分支 Example sentencesExamples Branchiopod characters include endites with setae turned backwards, the elongation of the telson, and its fluke-shaped rami. These include the presence of true, elongate furcal rami bearing spines in Perspicaris. The rami of antenna 2 have between 12 and 19 articles. 2.1 A barb of a feather. 羽支 Example sentencesExamples Finger et al. and Andersson have documented that the structural UV hues of feather barbs, like other barb structural colors, are produced by the keratin air matrix of the spongy medullary layer of the barb ramus. That is, the main shaft of the barb, the ramus, has a branching pattern of barbules. Derivatives ramal adjective ˈreɪm(ə)l Origin Mid 17th century: from Latin, literally 'branch'. Definition of ramus in US English: ramus nounˈrāməs 1Anatomy An arm or branch of a bone, in particular those of the ischium and pubes or of the jawbone. 〔剖〕（尤指坐骨和耻骨或颌骨的）支，分支 Example sentencesExamples Sandwiched between the two jaw rami is the left splenial, which has become detached and has been displaced slightly dorsally. The gland may extend to the mandibular ramus to cover the buccinator muscle. Mandibular length refers to the distance between the posterior ramus and the inner mentum. The section passes through the mandibular ramus. At the inferior border of the pubis the two corpora cavernosa separate, bend sharply caudally, laterally, and dorsally, and follow the inferior borders of the inferior rami of the pubic bones. 1.1 A major branch of a nerve. （神经的）主要分支 Example sentencesExamples The intermediate and ulnar sets of muscles are supplied by branches from the deep ramus of the radial nerve after it has passed through the supinator muscle. Note the ventral and dorsal rami of cervical spinal nerves. A substantial portion of the nerve makes up its two communicating rami with the facial nerve; these are the strongest and most consistent of the many peripheral communications between trigeminal and facial nerves. 2Zoology A structure in an invertebrate that has the form of a projecting arm, typically one of two or more that are conjoined or adjacent. 〔动〕（无脊椎动物的）附肢分支 Example sentencesExamples These include the presence of true, elongate furcal rami bearing spines in Perspicaris. Branchiopod characters include endites with setae turned backwards, the elongation of the telson, and its fluke-shaped rami. The rami of antenna 2 have between 12 and 19 articles. 2.1 A barb of a feather. 羽支 Example sentencesExamples That is, the main shaft of the barb, the ramus, has a branching pattern of barbules. Finger et al. and Andersson have documented that the structural UV hues of feather barbs, like other barb structural colors, are produced by the keratin air matrix of the spongy medullary layer of the barb ramus. Origin Mid 17th century: from Latin, literally ‘branch’.
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