commissure

com·mis·sure  (km-shr)

n.

1. A line or place at which two things are joined.

2. Anatomy

a. A tract of nerve fibers passing from one side to the other of the spinal cord or brain.

b. The point or surface where two parts, such as the eyelids, lips, or cardiac valves, join or form a connection.

3. Botany The surface or place along which two structures, such as carpels, are joined.

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[Middle English, from Latin commissra, from commissus, past participle of committere, to join; see commit.]

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commis·sural adj.

Thesaurus

Noun

1.

commissure - a bundle of nerve fibers passing from one side to the other of the brain or spinal cord nerve pathway, nerve tract, pathway, tract - a bundle of myelinated nerve fibers following a path through the brain corpus callosum - a broad transverse nerve tract connecting the two cerebral hemispheres