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or nan·o·plank·ton  (năn′ə-plăngk′tən)
Plankton composed of organisms, chiefly small phytoplankton, measuring from 2 to 20 micrometers.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


or nan•o•plank•ton

(ˌnæn əˈplæŋk tən)

plankton that can pass through fine mesh nets.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
References in periodicals archive ?
Some factors in the use of nannoplankton cultures as food for larval and juvenile bivalves.
Florisphaera profunda, a possible nannoplankton indicator of late Quaternary changes in sea-water turbidity at the northwestern margin of the Pacific.
Hay, "Carbonate fluxes and calcareous nannoplankton," in Coccolithophores--From Molecular Processes to Global Impact, H.
2008 Evolution of Calcareous Nannoplankton and the Recovery of Marine Food Webs After the Cretaceous-Paleocene Mass Extinction.
1979), radiolarians (e.g., Hays et al., 1989), calcareous nannoplankton (Hiramatsu and De Deckker, 1997), ostracodes (Mourguiart and Correge, 1998), terrestrial mollusks (Rousseau, 1991; Moine and Rousseau, 2002; Sumegi and Krolopp, 2002) and pollen (Bryson and Kutzbach, 1974; Andrews et al., 1979; Norton et al., 1986; Pienitz et al., 1999; Fauquette et al., 1999; Andreev et al., 2001, 2002, 2003, 2004).
(1998): Paleoecological change in middle to low-latitude calcareous nannoplankton at the Cretaceous/Tertiary boundary.
Calcareous nannoplankton zonation of the cenozoicof the Gulf Coast and Caribbean Antillean Area, and trans-oceanic correlation.
According to the researchers, a catastrophic impact could have triggered the death of floating one-celled ocean plants, called calcareous nannoplankton. This, in turn, would have weakened the earth's ability to reflect radiation from the sun, raising surface temperatures by 6[deg.]C for several hundred thousand years.