English

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Etymology

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From pico- +‎ plankton.

Noun

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picoplankton (uncountable)

  1. The plankton composed of cells between 0.2 and 2 micrometers.
    • 2007 January 9, Douglas Martin, “John Sieburth, 79, Who Studied Various Types of Marine Life, Dies”, in New York Times[1]:
      He and P. W. Johnson confirmed the recent discovery of a species of photosynthetic picoplankton, using electron microscopes to perceive fluorescence produced by the chlorophyll of the organisms.

Usage notes

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  • Can refer to other size ranges

Coordinate terms

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