commissure

noun com·mis·sure \ ˈkä-mə-ˌshu̇r \

Definition of commissure

1 : a point or line of union or junction especially between two anatomical parts (such as adjacent heart valves)
2 : a connecting band of nerve tissue in the brain or spinal cord

commissural

play \ˌkä-mə-ˈshu̇r-əl\ adjective

Origin and Etymology of commissure

Middle English, "suture, seam," borrowed from Middle French & Latin; Middle French, borrowed from Latin commissūra "joint, juncture, seam," from commissus (past participle of committere "to join together") + -ūra -ure — more at commit


Medical Dictionary

commissure

noun com·mis·sure \ ˈkäm-ə-ˌshu̇(ə)r \

medical Definition of commissure

1 : a point or line of union or junction between two anatomical parts (as the lips at their angles or adjacent heart valves)
2 : a connecting band of nerve tissue in the brain or spinal cord — see anterior commissure, corpus callosum, gray commissure, habenular commissure, hippocampal commissure, posterior commissure — compare massa intermedia

commissural

play \ˌkäm-ə-ˈshu̇r-əl\ adjective

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