parazoan

Thesaurus

Noun

1.

parazoan - primitive multicellular marine animal whose porous body is supported by a fibrous skeletal framework; usually occurs in sessile colonies poriferan, sponge invertebrate - any animal lacking a backbone or notochord; the term is not used as a scientific classification phylum Porifera, Porifera - coextensive with the subkingdom Parazoa: sponges glass sponge - a siliceous sponge (with glassy spicules) of the class Hyalospongiae