limb bud

Medical Dictionary

limb bud n.
A mesenchymal outgrowth covered with ectoderm on the flank of an embryo that gives rise to either the forelimb or the hindlimb.

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