plural noun Eu·echinoidea \(¦)yü+\

Definition of Euechinoidea

in some classifications

  1. :  a division of Echinoidea including all living sea urchins and comprising the orders Cidaroida, Centrechinoida, and Exocycloida — compare palaeechinoidea

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Origin and Etymology of euechinoidea

New Latin, from eu- + Echinoidea

Seen and Heard

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to criticize severely

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