(n. pl.) A grand division of the Invertebrata, including the sponges; -- called also Spongiae, Spongida, and Spongiozoa. The principal divisions are Calcispongiae, Keratosa or Fibrospongiae, and Silicea.
PORIFERA
Meaning of PORIFERA in English
Webster's English dictionary. Английский словарь Webster. 2012