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- Dictionarycommissure/ˈkɒmɪsjʊə/
noun
- 1. the joint between two bones.
- 2. a band of nerve tissue connecting the hemispheres of the brain, the two sides of the spinal cord, etc.
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COMMISSURE definition: 1. a surface where two parts meet, for example the lips 2. a band of nerves going from one side of…. Learn more.
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. ˌkä-mə-ˈshu̇r-əl. adjective. Word History. Etymology.
A commissure ( / ˈkɒməʃər /) is the location at which two objects abut or are joined. The term is used especially in the fields of anatomy and biology. The most common usage of the term refers to the brain's commissures, of which there are at least nine.
noun. 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. any of various joints between parts, as between the carpels, leaf lobes, etc, of a plant.
1. a site of union of corresponding parts, such as the angle of the lips or eyelids. 2. the site of junction between adjacent cusps of a cardiac valve. anterior commissure the band of fibers connecting the parts of the two cerebral hemispheres.
commissure in British English. (ˈkɒmɪˌsjʊə ) noun. 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. Collins English Dictionary.
com·mis·sure. (kŏm′ə-sho͝or′) 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.
Commissure Definition. A line where two parts join or unite; joint; seam. A tract of nerve fibers passing from one side to the other of the spinal cord or brain. The area where symmetrical parts join, as of the lips or of the brain's hemispheres.
Definitions of commissure. noun. a bundle of nerve fibers passing from one side to the other of the brain or spinal cord. see more.
…a broad connection called a commissure. Longitudinal nerve cords, usually three to five pairs, extend posteriorly from the brain; they are connected by transverse commissures, and smaller, lateral nerves extend from the cords. The lateral nerves give rise to the peripheral nerve plexuses.
