Definitions for echinoidea

This page provides all possible meanings and translations of the word echinoidea

Princeton's WordNet

  1. Echinoidea, class Echinoidea(noun)

    sea urchins and sand dollars

Webster Dictionary

  1. Echinoidea

    the class Echinodermata which includes the sea urchins. They have a calcareous, usually more or less spheroidal or disk-shaped, composed of many united plates, and covered with movable spines. See Spatangoid, Clypeastroid


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