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hypomyelination

[hī′pō-mī′ə-lə-nā′shən]

n.

Defective formation of myelin in the spinal cord and brain.hypomyelinogenesis

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