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Echinoidea

Pronunciation: /ˌɛkɪˈnɔɪdɪə/

Definition of Echinoidea

noun

Zoology
  • a class of echinoderms that comprises the sea urchins.

Origin:

modern Latin (plural), from echinus

Echinoidea in other Oxford dictionaries

Definition of Echinoidea in the US English dictionary

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