Wiktionary

commissure

English

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Etymology

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From Latin commissura (“a joining or connecting together”), from commissus (passive perfect participle of committo (“I join, I connect”)) +‎ -ura.

Pronunciation

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Noun

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commissure (plural commissures)

  1. (anatomy) The joint between two bones.
  2. (neuroanatomy) A band of nerve tissue connecting the hemispheres of the brain, the two sides of the spinal cord, etc.
  3. (anatomy) The line where the upper and lower lips or eyelids meet.
    • 1884, Elliott Coues, “§ 4.—An Introduction to the Anatomy of Birds.”, in Key to North American Birds. […], 2nd edition, Boston, Mass.: Estes and Lauriat, →OCLC, part II (General Ornithology), page 180:
      There is a third inner eyelid, highly developed and of beautiful mechanism: this is the nictitating membrane, or "winker" (nictito, I wink), a delicate, elastic, translucent, pearly-white fold of the conjunctiva. While the other lids move vertically and have a horizontal commissure, the winker sweeps horizontally or obliquely across the ball, from the side next the beak to the opposite.

Derived terms

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Translations

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References

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French

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Etymology

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Learned borrowing from Latin commissūra.

Pronunciation

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Noun

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commissure f (plural commissures)

  1. commissure
    la commissure des lèvres ― the corner of the mouth

Further reading

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Italian

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Noun

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commissure f

  1. plural of commissura

Latin

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Participle

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commissūre

  1. vocative masculine singular of commissūrus
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