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cnidarian

cnidarian

1 9.9
A water animal like a jellyfish with a soft bag-shaped body and tentacles that sting
  • noun
  • /nɪˈdɛəriən/
  • Specialized
: cnidario
  • Consider two examples of tendentious misrepresentation: the sea slugs that harbor chloroplasts temporarily for photosynthesis or cnidarian nematocysts for defense.
  • studies on cnidarians

Examples

  • Algal or cnidarian genomes are not integrated into the slug.

    Academic text (2003)
  • Researchers discovered a new cnidarian species while exploring the vibrant reefs of the Caribbean.

  • The skeleton of calcium carbonate is produced by individual cnidarian polyps; see photograph above.

    Academic text (2009)
  • This unknown cnidarian from the deep Arctic Canada basin was attached to a second species of cnidarian when it was grabbed with the manipulator arm of a remotely operated underwater vehicle, or ROV.

    Academic text (2010)
  • This unknown cnidarian from the deep Arctic Canada basin was attached to a second species of cnidarian when it was grabbed with the manipulator arm of a remotely operated underwater vehicle, or ROV.

    Academic text (2010)
  • Aposymbiotic cnidarians that lack zooxanthellae are ammonotelic; that is, they normally excrete ammonium into the water.

    Academic text (1993)
  • Several exotic species accompanied the Pacific oyster to France: a cnidarian, a mollusk, two cirripeds, and two seaweeds, although none is believed to pose a danger to native species.

    Academic text (1992)
  • Developing studies on the cnidarian symbioses will contribute to understanding the impacts of global climate change on these important invertebrate species (Rodriguez-Lanetty et al., 2006; Schwarz et al., 2006).

    Academic text (2008)
  • The cnidarian phylum includes diverse species such as jellyfish, anemones, and corals, all characterized by their soft bodies and stinging tentacles.

  • Many students find cnidarians fascinating because of their unique adaptations to aquatic life.

Surface Forms

cnidarian singular
cnidarians plural

Etymology

The word cnidarian comes from the Greek root cnid- meaning 'nettle', like the stinging plant. That's why cnidarians (jellyfish, corals, and sea anemones) have tiny 'stinging cells' used to catch prey and defend themselves.