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decussation

[dee-kuh-sey-shuh n, dek-uh-]
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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.
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Origin of decussation

First recorded in 1650–60; decussate + -ion
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Related Words for decussation

overpass, crossroad, junction, bridge, passage, intersection, interchange, traverse, network, exchange, screen, traversal, grating, loop, underpass, cloverleaf, crossway, decussation, crosswalk, gridiron

Examples from the Web for decussation

Historical Examples of decussation

  • This arrangement is termed the decussation of the anterior columns of the medulla.

    A Treatise on Physiology and Hygiene

    Joseph Chrisman Hutchison

  • The most anterior is the pyramid or motor tract, the decussation of which has been seen.

  • Physicians are not without the use of this decussation in several operations, in ligatures and union of dissolved continuities.


decussation in Medicine

decussation

(dĕk′ə-sāshən, 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.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.