paramere definition

  • noun:
    • the symmetrical halves of any the radii, or spheromeres, of a radiate pet, such a starfish.
    • the shaped halves of any one of the radii, or spheromeres, of a radiate animal, as a starfish.
    • In biology: A radiated component or organ; one of a set of radiating components arranged such as the spokes of a wheel about a common center; an actinomere: correlated with antimere, metamere, etc. The hands or rays of a starfish arc parameres inside sense.
    • Either 1 / 2, correct or remaining, of a bilaterally symmetrical animal: today oftener labeled as antimere.
    • Either one half, correct or left, of one portion or somite of a bilaterally symmetrical animal.
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