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单词 echinoid
释义

WordReference Random House Unabridged Dictionary of American English © 2024
e•chi•noid  (i kīnoid, ekə noid′),USA pronunciation adj. 
  1. Invertebratesbelonging or pertaining to the class Echinoidea, comprising mainly sea urchins and sand dollars.

n. 
  1. Invertebratesany echinoderm of the Echinoidea.
  • Neo-Latin Echinoidea; see echinus, -oidea
  • 1850–55

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