commissure

noun com·mis·sure \ˈkä-mə-ˌshu̇r\

Definition of COMMISSURE

: a point or line of union or junction especially between two anatomical parts (as adjacent heart valves)

: a connecting band of nerve tissue in the brain or spinal cord

— com·mis·sur·al \ˌkä-mə-ˈshu̇r-əl\ adjective

Middle English, from Middle French or Latin; Middle French, from Latin commissura a joining, from commissus, past participle

First Known Use: 15th century

Medical Dictionary

noun com·mis·sure \ˈkäm-ə-ˌshu̇(ə)r\

: a point or line of union or junction between two anatomical parts (as the lips at their angles or adjacent heart valves)

—com·mis·su·ral \ˌkäm-ə-ˈshu̇r-əl\ adjective

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