What is "epimere"

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. [1913 Webster] ||

n. (context biology English) One of the segments of the transverse axis, or the so-called homonymous parts; as, for example, one of the several segments of the extremity in vertebrates, or one of the similar segments in plants, as in a segmented leaf.