[phylum of radially symmetrical invertebrates characterized by possession of stinging cells called nematocysts; includes the classes Anhozoa, Cubozoa, Hydrozoa, and Scyphozoa; members carry Cnidarian venoms. ( CSP )]
UMLS (CSP) C0009222 Relation/PAR: Invertebrates
Relation/CHD: Hydrozoa
Anthozoa