Porifera
Pronunciation : Po*rif"e*ra
Part of Speech : n.
Etymology : [NL., fr. L. porus pore + ferre to bear.] (Zo?l.)
Definition : Defn: A grand division of the Invertebrata, including the sponges; -- called also Spongi?, Spongida, and Spongiozoa. The principal divisions are Calcispongi?, Keratosa or Fibrospongi?, and Silicea.
pl.
Source : Webster's Unabridged Dictionary, 1913