Meaning of vestigial

ves•tig•i•al

Pronunciation: (ve-stij'ē-ul, -stij'ul), [key]
— adj.
  1. of, pertaining to, or of the nature of a vestige: a vestigial tail.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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