phylum Echinodermata

Thesaurus

Noun

1.

phylum Echinodermata - radially symmetrical marine invertebrates including e.g. starfish and sea urchins and sea cucumbersEchinodermataanimal kingdom, Animalia, kingdom Animalia - taxonomic kingdom comprising all living or extinct animalsechinoderm - marine invertebrates with tube feet and five-part radially symmetrical bodiesAsteroidea, class Asteroidea - sea starsclass Ophiuroidea, Ophiuroidea - brittle stars and basket starsclass Echinoidea, Echinoidea - sea urchins and sand dollarsclass Crinoidea, Crinoidea - sea liliesclass Holothuroidea, Holothuroidea - class of echinoderms including the sea cucumbersphylum - (biology) the major taxonomic group of animals and plants; contains classes