Epimere \Ep"i*mere\, n. [Epi- + -mere.] (Biol.) One of the segments of the transverse axis, or the so called homonymous parts; as, for example, one of the several segments of the extremities in vertebrates, or one of the similar segments in plants, such as the segments of a segmented leaf. --Syd. Soc. Lex.