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.