phylum Porifera

Thesaurus

Noun

1.

phylum Porifera - coextensive with the subkingdom Parazoa: spongesPoriferaParazoa, subkingdom Parazoa - multicellular organisms having less-specialized cells than in the Metazoa; comprises the single phylum Poriferaparazoan, poriferan, sponge - primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile coloniessponge genus - a genus of Poriferaclass Hyalospongiae, Hyalospongiae - sponges with siliceous spicules that have six rays; choanocytes are restricted to finger-shaped chambersphylum - (biology) the major taxonomic group of animals and plants; contains classes