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cnidarian

[nahy-dair-ee-uh n] /naɪˈdɛər i ən/
noun
1.
any invertebrate animal, as a hydra, jellyfish, sea anemone, or coral, considered as belonging to the phylum Cnidaria, characterized by the specialized stinging structures in the tentacles surrounding the mouth; a coelenterate.
adjective
2.
belonging or pertaining to the Cnidaria.
Origin
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples from the web for cnidarian
  • However, detailed study of the cnidarian growth pattern has discounted this hypothesis.
British Dictionary definitions for cnidarian

cnidarian

/naɪˈdɛərɪən; knaɪ-/
noun
1.
any invertebrate of the phylum Cnidaria, which comprises the coelenterates
adjective
2.
of, relating to, or belonging to the Cnidaria
Word Origin
C20: from New Latin Cnidaria, from Greek knidē nettle
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
© William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
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cnidarian in Science
cnidarian
  (nī-dâr'ē-ən)   
Any of various invertebrate animals of the phylum Cnidaria (or Coelenterata), having a body with radial symmetry and tentacles that bear microscopic stinging capsules called nematocysts. The tentacles surround a mouth that opens into a saclike internal cavity and that is used both for ingesting food and for eliminating wastes. Cnidarians evolved in the Precambrian Era, but it is not known from what type of organism. Cnidarians include the jellyfishes, hydras, sea anemones, and corals. Also called coelenterate.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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