obsoletely 1. No longer in use or no longer useful; of a kind or style no longer current; old-fashioned. 2. With reference to a plant or animal part, indistinct or imperfect as compared with a corresponding part in related organisms; vestigial (bodily part or organ that is small and degenerate or imperfectly developed in comparison to one more ful... Found on http://www.wordinfo.info/words/index/info/view_unit/3415/