epimerWiktionary 原文/ˈɛpɪmə(r)/构词拆解epiepi-前缀mer-mer后缀epi-Above in location or position. · Upon, atop, directly on top of in terms of position.-mer(chemistry) Used to form words relating to chemical structure, denoting parts of a molecule, for example, monomer (one part), dimer (two parts), polymer (many parts).词源说明From epi- + -mer.释义名词noun1(chemistry) Any diastereoisomer that has the opposite configuration at only one of the stereogenic centres.同族词派生词 4epimerase·epimeric·