nParamere(Zoöl) One of the symmetrical halves of any one of the radii, or spheromeres, of a radiate animal, as a starfish.
Century Dictionary and Cyclopedia
nparamereIn biology: A radiated part or organ; one of a set of radiating parts arranged like the spokes of a wheel about a common center; an actinomere: correlated with antimere, metamere, etc. The arms or rays of a starfish arc parameres in this sense.
nparamereEither half, right or left, of a bilaterally symmetrical animal: now oftener called antimere.
nparamereEither half, right or left, of one segment or somite of a bilaterally symmetrical animal.
Chambers's Twentieth Century Dictionary
nParamerepar′a-mēr (biol.) a radiated part or organ: either half of a bi-laterally symmetrical animal—usually Antimere