SPATANGOIDEA


Meaning of SPATANGOIDEA in English

( n. pl. )

An order of irregular sea urchins, usually having a more or less heart-shaped shell with four or five petal-like ambulacra above. The mouth is edentulous and situated anteriorly, on the under side.

Webster's Revised Unabridged English Dictionary.      Пересмотренный полный словарь английского языка Webster.