Outmoded in design, style, or construction: an obsolete locomotive.
Biology Vestigial or imperfectly developed, especially in comparison with other individuals or related species; not clearly marked or seen; indistinct. Used of an organ or other part of an animal or plant.
tr.v.
ob·so·let·ed, ob·so·let·ing, ob·so·letes To cause to become obsolete.
[Latin obsolētus, past participle of obsolēscere, to fall into disuse; see obsolescent.] ob'so·lete'ly adv., ob'so·lete'ness n., ob'so·let'ism n.
(ŏb'sə-lēt', ŏb'sə-lēt') 