1) a bundle of nerve fibres that crosses the midline of the central nervous system, often connecting similar structures on each side.
2) any other tissue connecting two similar structures.

The new mediacal dictionary. 2014.


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  • commissure — [ kɔmisyr ] n. f. • 1314; lat. commissura, de committere « joindre ensemble » 1 ♦ Anat. Point de jonction de deux parties. Commissure blanche, grise de la moelle. Commissures du cerveau. Adj. COMMISSURAL, ALE, AUX . 2 ♦ Cour. Commissures (des… …   Encyclopédie Universelle

  • commissure — COMMISSURE. sub. fém. Terme didactique, qui se dit Du point d union de quelques parties du corps humain. La commissure des nerfs optiques. La commissure des lèvres …   Dictionnaire de l'Académie Française 1798

  • Commissure — Com*mis sure (? or ?; 134 6), n. [L. commissura a joining together: cf. F. commissure. See {Commit}.] 1. A joint, seam, or closure; the place where two bodies, or parts of a body, meet and unite; an interstice, cleft, or juncture. [1913 Webster]… …   The Collaborative International Dictionary of English

  • commissure — [käm′ə shoor΄] n. [ME & OFr < L commissura < commissus, pp. of committere: see COMMIT] 1. a line where two parts join or unite; joint; seam 2. Anat. the area where symmetrical parts join, as of the lips or of the brain s hemispheres… …   English World dictionary

  • Commissure — A commissure is the place where two things are joined. The term is used especially in the fields of anatomy and biology. In anatomy, commissure refers to a bundle of nerve fibers that cross the midline at their level of origin or entry (as… …   Wikipedia

  • commissure — 1. Angle or corner of the eye, lips, or labia. 2. A bundle of nerve fibers passing from one side to the other in the brain or spinal cord. SYN: commissura [TA]. anterior c. [TA] a round bundle of …   Medical dictionary

  • COMMISSURE — s. f. T. d Anat., qui se dit Du point d union de quelques parties du corps. La commissure des nerfs optiques. La commissure des lèvres, des paupières …   Dictionnaire de l'Academie Francaise, 7eme edition (1835)

  • COMMISSURE — n. f. Point de jonction de deux ou plusieurs parties. En termes d’Anatomie. La commissure des nerfs optiques, La commissure des lèvres, des paupières. En termes d’Architecture, Les commissures d’un pilier …   Dictionnaire de l'Academie Francaise, 8eme edition (1935)

  • Commissure — En anatomie, une commissure est un moyen d union entre deux parties, par exemple la commissure du cerveau ou des lèvres. Lien interne Corps calleux Portail de la médecine Catégorie : Vo …   Wikipédia en Français

  • commissure — (ko mi ssu r ) s. f. 1°   Terme d anatomie. Point de jonction de certaines parties. La commissure des lèvres. 2°   Terme d architecture. Joint des pierres. Des ornements propres à cacher les commissures des colonnes. 3°   Terme de musique. S est… …   Dictionnaire de la Langue Française d'Émile Littré

  • commissure — noun Etymology: Middle English, from Middle French or Latin; Middle French, from Latin commissura a joining, from commissus, past participle Date: 15th century 1. a point or line of union or junction especially between two anatomical parts (as… …   New Collegiate Dictionary

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