‖Po‐rif″e‐ra (?), n. pl. [NL., fr. L. porus pore + ferre to bear.] (Zoöl.) A grand division of the Invertebrata, including the sponges; — called also Spongiæ, Spongida, and Spongiozoa. The principal divisions are Calcispongiæ, Keratosa or Fibrospongiæ, and Silicea.
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Webster's Dictionary 1913
Webster's Revised Unabridged Dictionary, C. & G. Merriam Co., 1913.