zoo plankton


the aggregate of animal or animallike organisms in plankton, as protozoans.
Compare phytoplankton.

1900–05; zoo- + plankton

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World English Dictionary
zooplankton (ˌzəʊəˈplæŋktən)
Compare phytoplankton the animal constituent of plankton, which consists mainly of small crustaceans and fish larvae

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American Heritage
Science Dictionary
zooplankton   (zō'ə-plāngk'tən)  Pronunciation Key 
Plankton that consists of tiny animals, such as rotifers, copepods, and krill, and of microorganisms once classified as animals, such as dinoflagellates and other protozoans.
The American Heritage® Science Dictionary
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