Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps

Noun: cnidarian  nI'deh-ree-un
  1. Radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
    - coelenterate

Derived forms: cnidarians

Type of: invertebrate

Part of: Cnidaria, Coelenterata, phylum Cnidaria, phylum Coelenterata

Encyclopedia: Cnidarian