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medullary substance

medullary substance in Medicine

medullary substance n.

  1. The fatty material present in the myelin sheath of nerve fibers.

  2. See medulla.

The American HeritageĀ® Stedman's Medical Dictionary
Copyright Ā© 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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