from The American Heritage® Dictionary of the English Language, 4th Edition

  • n. Any of numerous minute marine and freshwater crustaceans of the subclass Copepoda, having an elongated body and a forked tail.

from Wiktionary, Creative Commons Attribution/Share-Alike License

  • n. Any of very many small crustaceans, of the subclass Copepoda, that are widely distributed and ecologically important; they include the water fleas

from the GNU version of the Collaborative International Dictionary of English

  • adj. Of or pertaining to the Copepoda.

from The Century Dictionary and Cyclopedia

  • Of or pertaining to the Copepoda. Also copepodous.
  • n. One of the Copepoda. Also copepodan.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • n. minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish


From New Latin Cōpēpoda, order name : Greek kōpē, oar; see kap- in Indo-European roots + -poda, -pod.
(American Heritage® Dictionary of the English Language, Fourth Edition)


  • Its "cigar" is in fact a parasitic crustacean known as a copepod, but no one knows what the blobfish does with its comical nose.

    Where Wonders Await Us

  • *So that you're not kept in suspense, a copepod is a small marine crustracean (i.e., a little animal lacking the cuteness of a cat) that forms a crucial part of the food web between marine plankton (little plants) and fish.


  • This image of a tiny crustacean called a copepod is one of the winners of this year's Nikon Small World photography competition.

    Boing Boing

  • Plentiful algae amplify the population of a tiny shrimp-like creature called a copepod - in particular, a kind called Eurytemora.

    NPR Topics: News

  • In this paper the authors report on the use of photochemically 
 active biocides for the treatment of a marine copepod, which is a model of parasitic sea lice.

  • Vibrio cholerae is associated with a type of crustacean called a copepod that appears naturally in many areas of the world.

    Signs of the Times

  • A closeup of Eurytemora, a kind of copepod that serves as a reservoir for the cholera bacterium.

    NPR Topics: News

  • The harpacticoid copepod Tigriopus californicus inhabits rocky, intertidal splash pools in a patchy distribution along the west coast of North America.

    Breaking news about baseball bats

  • A final copepod project involves understanding the genetic basis of a vital physiological process in these copepods-their ability to survive dramatic changes in salinity.

    Breaking news about baseball bats

  • Recruitment of Atlantic cod stocks in relation to temperature and advection of copepod populations.

    Fisheries and aquaculture in the Northeast Atlantic (Barents and Norwegian Seas)

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  • "'What were you observing, sir?'

    "'Luminous organisms, mostly minute pelagic crustaceans, copepods; but I need calmer water for it, the good calm water we have had almost all the way. How I pray it may grow quiet again before we leave the sargasso quite behind.'"
    --Patrick O'Brian, The Far Side of the World, 144

    February 20, 2008