vestigial
From ZooTerms (Dictionary of Invertebrate Zoology)
Revision as of 12:11, 6 September 2013 by Andreas Plank (Talk | contribs) (1 revision: simple adjective)
vestigial (adjective; Latin vestigium, footprint): Pertaining to a small, degenerate, nonfunctional organ that was ancestrally more fully developed or functional.