vestigial

vestigial definition - medical

ves·tig·i·al (vĕ-stĭjˈē-əl, -stĭjˈəl)

adjective
Occurring or persisting as a rudimentary or degenerate structure.

The American Heritage® Medical Dictionary Copyright © 2009 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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