from The American Heritage® Dictionary of the English Language, 4th Edition
- n. See cnidarian.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any simple aquatic animal bearing tentacles with nematocysts. Examples include jellyfish, coral, and anemones.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. radially symmetrical animals having saclike bodies with only one opening and tentacles with stinging structures; they occur in polyp and medusa forms
From New Latin Coelenterāta, phylum name : Greek koilos, hollow; see -coel + enter(on) + -ate1.(American Heritage® Dictionary of the English Language, Fourth Edition)