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phytoplankton
noun
See more 4-syllable nouns

Divide phytoplankton into syllables:

phy · to · plank · ton

How to pronounce phytoplankton:

Definition of phytoplankton:

phytoplankton (noun):
compare zooplankton
photosynthetic or plant constituent of plankton; mainly unicellular algae.
minute aquatic photosynthetic organisms (such as dinoflagellates, diatoms, and cyanobacteria) photosynthetic plankton of freshwater or marine environments

Synonyms for phytoplankton:

plantflora

Other 4-syllable words like phytoplankton

Here are some other common words that have 4 syllables, like phytoplankton does.

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