plankton: Meaning and Definition of

plank•ton

Pronunciation: (plangk'tun), [key]
— n.
  1. the aggregate of passively floating, drifting, or somewhat motile organisms occurring in a body of water, primarily comprising microscopic algae and protozoa.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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