We don't have synonyms for epimere yet — it may be a rare, specialized, newly coined, or misspelled word. The closest thesaurus entries we have are epimer, epimera and epimers.
(n) :
(biology) 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, as in a segmented leaf.
(n) :
(biology) 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, as in a segmented leaf.