'Poriferan' definitions:

Definition of 'poriferan'

From: WordNet
noun
Primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies [syn: sponge, poriferan, parazoan]

Definition of 'Poriferan'

From: GCIDE
  • Poriferan \Po*rif"er*an\, n. (Zool.) One of the Polifera. [1913 Webster]