commissure


com·mis·sure

noun \ˈkä-mə-ˌshr\

Definition of COMMISSURE

1
:  a point or line of union or junction especially between two anatomical parts (as adjacent heart valves)
2
:  a connecting band of nerve tissue in the brain or spinal cord
com·mis·sur·al \ˌkä-mə-ˈshr-əl\ adjective

Origin of COMMISSURE

Middle English, from Middle French or Latin; Middle French, from Latin commissura a joining, from commissus, past participle
First Known Use: 15th century

com·mis·sure

noun \ˈkäm-ə-ˌsh(ə)r\   (Medical Dictionary)

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
com·mis·su·ral \ˌkäm-ə-ˈshr-əl\ adjective

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