phy·to·plank·ton

[fahy-tuh-plangk-tuhn]
noun
the aggregate of plants and plantlike organisms in plankton.
Compare zooplankton.


Origin:
1895–1900; phyto- + plankton

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2013.
Cite This Source Link To phytoplankton
Collins
World English Dictionary
phytoplankton (ˌfaɪtəˈplæŋktən) [Click for IPA pronunciation guide]
 
n
Compare zooplankton the photosynthesizing organisms in plankton, mainly unicellular algae and cyanobacteria
 
phytoplanktonic
 
adj

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009
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00:10
Phytoplankton is always a great word to know.
So is lollapalooza. Does it mean:
an extraordinary or unusual thing, person, or event; an exceptional example or instance.
a printed punctuation mark (‽), available only in some typefaces, designed to combine the question mark (?) and the exclamation point (!), indicating a mixture of query and interjection, as after a rhetorical question.
American Heritage
Science Dictionary
phytoplankton   (fī'tō-plāngk'tən)  Pronunciation Key 
Plankton consisting of free-floating algae, protists, and cyanobacteria. Phytoplankton form the beginning of the food chain for aquatic animals and fix large amounts of carbon, which would otherwise be released as carbon dioxide.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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Example sentences
Depth and life, specifically phytoplankton, both influence the ocean's color.
Anyway, at some point chloroplasts evolved in phytoplankton.
Phytoplankton are free floating flora which convert inorganic compounds into
  complex organic compounds.
Phytoplankton is the official name for the microscopic floating plants that
  live in the sunlit layer of the ocean.
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