English

Noun

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:

     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.