decussation

[ dee-kuh-sey-shuh n, dek-uh- ]
/ ˌdi kəˈseɪ ʃən, ˌdɛk ə- /

noun

a process of becoming or condition of being crossed in the form of an X.
Anatomy. a nerve or tract of nerve fibers that crosses from one side of the central nervous system to the other.

Origin of decussation

First recorded in 1650–60; decussate + -ion

Example sentences from the Web for decussation

Medical definitions for decussation

decussation
[ dĕk′ə-sāshən, dē′kə- ]

n.

A crossing in the shape of an X.
An X-shaped crossing, especially of homonymous nerves or bands of nerve fibers, connecting corresponding parts on opposite sides of the brain or spinal cord.