||E*pim"e*ron (?), n.; pl.
Epimera (#). [NL., fr. Gr. 'epi` upon +
? a part.] (Zoöl.) (a) In
crustaceans: The part of the side of a somite external to the basal
joint of each appendage. See Illust. under
Crustacea. (b) In insects: The lateral
piece behind the episternum. [Written also
epimerum.]