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decussation

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noun de·cus·sa·tion \ˌde-kə-ˈsā-shən, ˌdē-ˌkə-\

Definition of decussation

  1. 1 :  the action of crossing (as of nerve fibers) especially in the form of an X

  2. 2 :  a crossed tract of nerve fibers passing between centers on opposite sides of the nervous system



Circa 1656

First Known Use of decussation

circa 1656


Medical Dictionary

decussation

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noun de·cus·sa·tion \ˌdē-(ˌ)kə-ˈsā-shən\

Medical Definition of decussation

  1. 1:  the action of intersecting or crossing (as of nerve fibers) especially in the form of an X—see pyramidal decussation

  2. 2a:  a band of nerve fibers that connects unlike centers on opposite sides of the nervous systemb:  a crossed tract of nerve fibers passing between centers on opposite sides of the central nervous system :  commissure




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