| 单词 | cnidarian |
| 释义 | cnidarian[ nahy-dair-ee-uhn ] / naɪˈdɛər i ən / nounany 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. adjectivebelonging or pertaining to the Cnidaria. Origin of cnidarianCnidari(a) + -an Words nearby cnidarianCND, cnemis, CNG, cnida, Cnidaria, cnidarian, cnido-, cnidoblast, cnidocil, cnidocyst, cnidogenous Dictionary.com UnabridgedBased on the Random House Unabridged Dictionary, © Random House, Inc. 2020 British Dictionary definitions for cnidariancnidarian / (naɪˈdɛərɪən, knaɪ-) / nounany invertebrate of the phylum Cnidaria, which comprises the coelenterates adjectiveof, relating to, or belonging to the Cnidaria Word Origin for cnidarianC20: 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 Scientific definitions for cnidariancnidarian [ nī-dâr′ē-ən ] Any of various invertebrate animals of the phylum Cnidaria, 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. The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved. |
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