clypeasteroid

名词 n.
中文释义

英文释义

名词 n.
  1. Any echinoderm of the order Clypeasteroida of sand dollars.
    — Their living representatives include the sea urchins or 'true' echinoids, the heart-urchins or spatangoids and allied forms, the sand-dollars or clypeasteroids, and the slate-pencil-urchins, or cidaroids.

词形变化

clypeasteroids plural
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