cnidarian

A dahlia sea anemone (Tealia sp.) – an Atlantic coast cnidarian. Photo: Andy Bruckner A member of the phylum Cnidaria, a group of aquatic (mostly marine) invertebrates which includes corals, Hydra, jellyfish, sea anemones, sea pens, sea whips, and sea fans. Cnidarians (also known as coele...
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cnidarian

any member of the phylum Cnidaria (Coelenterata). Mostly marine animals, the cnidarians include the corals, hydras, jellyfish, Portuguese men-of-war, ... [23 related articles]
Found on http://www.britannica.com/eb/a-z/c/101

cnidarian

cnidarian 1. Radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms. 2. Any invertebrate ocean animal that has tentacles surrounding the mouth; such as, sea anemones, corals, and jellyfish of the phylum Cnidaria.
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cnidarian

of, like, or pertaining to invertebrates such as jellyfish and anemones
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Cnidarian

[pronounce: nid-air-y-an] Invertebrates with thin sack-like bodies (e.g. jellyfish).
Found on http://www.encyclo.co.uk/local/20442
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