different between epimere vs epimer

English

epi- +? -mere

epimere (plural epimeres)

(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.
- 1978, Acta Universitatis Carolinae: Biologica
  Four pairs of the leg epimeres are distinctly divided by a sejugal interval into two groups.
- 1922, Libbie Hyman, Hyman's Comparative Vertebrate Anatomy
  The mesoderm next becomes differentiated into three regions: a dorsal region, called the epimere, which lies to each side of the neural tube; a middle region called the mesomere or nephrotome, situated lateral and ventral to the epimere

epi- +? -mer

epimer (plural epimers)

(chemistry) Any diastereoisomer that has the opposite configuration at only one of the stereogenic centres.

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