a. [ Gr. &unr_; unchangeable; 'a priv. + &unr_; changeable, &unr_; to change. ] (Zool.) Of or pertaining to insects that do undergo any metamorphosis. [ 1913 Webster ]
{ ‖‖ } n. pl. [ NL. See 1st Metabola. ] (Zool.) A comprehensive group of insects, including those that undegro a metamorphosis. [ 1913 Webster ]