[kom-uh-shoor, -shur]
a joint; seam; suture.
Botany. the joint or face by which one carpel coheres with another.
Anatomy, Zoology. a connecting band of nerve fiber, especially one joining the right and left sides of the brain or spinal cord.

1375–1425; late Middle English (< Middle French) < Latin commissūra, equivalent to commiss(us) (see commissary) + -ūra -ure

commissural [kuh-mish-er-uhl, kom-uh-shoor-uhl, -shur-] , adjective
intercommissural, adjective
pseudocommissural, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
commissure (ˈkɒmɪˌsjʊə)
1.  a band of tissue linking two parts or organs, such as the nervous tissue connecting the right and left sides of the brain in vertebrates
2.  any of various joints between parts, as between the carpels, leaf lobes, etc, of a plant
[C15: from Latin commissūra a joining together, from committerecommit]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

commissure com·mis·sure (kŏm'ə-shur')

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

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

  3. The point, angle, or surface where two parts, such as the eyelids, lips, or cardiac valves, join or connect.

com'mis·su'ral adj.
The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
It is probably a commissure connected with the auditory system.
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