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单词 radial symmetry
释义

WordReference Random House Unabridged Dictionary of American English © 2024
radial symmetry, [Biol.]
  1. Developmental Biology, Biologya basic body plan in which the organism can be divided into similar halves by passing a plane at any angle along a central axis, characteristic of sessile and bottom-dwelling animals, as the sea anemone and starfish. Cf. bilateral symmetry. 
  • 1885–90

Collins Concise English Dictionary © HarperCollins Publishers::
radial symmetry n
  1. a type of structure of an organism or part of an organism in which a vertical cut through the axis in any of two or more planes produces two halves that are mirror images of each other
    Compare bilateral symmetry
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