plankton

Noun
  1. The aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water (synset 101386279)
    is a type of: being, organism - a living thing that has (or can develop) the ability to act or function independently
    member holonym:
    • phytoplankton - photosynthetic or plant constituent of plankton; mainly unicellular algae
    • zooplankton - animal constituent of plankton; mainly small crustaceans and fish larvae
    belongs to: aggregate, congeries, conglomeration - a sum total of many heterogenous things taken together
    has: copepod, copepod crustacean - minute marine or freshwater crustaceans usually having six pairs of limbs on the thorax; some abundant in plankton and others parasitic on fish

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