WordReference Random House Unabridged Dictionary of American English © 2026
ep•i•mer
(ep′ə mər),USA pronunciation n. [Chem.]
ep•i•mer•ic
(ep′ə mer′ik),USA pronunciation adj.
- Chemistryeither of a pair of isomeric aldose compounds, esp. of certain sugars, that differ from each other in the positions of the H and OH at the second atom from the end of the carbon chain, as d-glucose and d-mannose.
- 1910–15; epi- + -mer
'epimer' also found in these entries (note: many are not synonyms or translations):