What does "commissure" mean?

Commissure: (Anat. & Zoöl.) (a) The point of union between two parts, as the angles of the lips or eyelids, the mandibles of a bird, etc. (b) A collection of fibers connecting parts of the brain or spinal marrow; a chiasma.

Additional senses

  1. 2.(Bot.) The line of junction or cohering face of two carpels, as in the parsnip, caraway, etc.

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