follow Dictionary.com

Your favorite word could be our Word of the Day!

decussation

[dee-kuh-sey-shuh n, dek-uh-] /ˌdi kəˈseɪ ʃən, ˌdɛk ə-/
noun
1.
a process of becoming or condition of being crossed in the form of an X .
2.
Anatomy. a nerve or tract of nerve fibers that crosses from one side of the central nervous system to the other.
Origin
1650-1660
1650-60; decussate + -ion
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
Cite This Source
Examples from the web for decussation
  • Within the chiasma, the optic nerves undergo a partial decussation.
  • The optic chiasma is formed by the meeting and partial decussation of the fibers of the two optic nerves.
decussation in Medicine

decussation dec·us·sa·tion (děk'ə-sā'shən, dē'kə-)
n.

  1. A crossing in the shape of an X.

  2. 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.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Cite This Source

Word of the Day

Difficulty index for decussation

Few English speakers likely know this word

Word Value for decussation

14
0
Scrabble Words With Friends