Definition of pleuston in English:

pleuston

noun

Ecology
  • Originally: the macroscopic plants found free-floating on, or partly under, the water surface. Later also: any of the organisms floating at the water surface, considered collectively.

Origin

Early 20th century. From German Pleuston from ancient Greek πλευστέον necessity of sailing, after German Plankton, Nekton.

Pronunciation

pleuston

/ˈpljuːstɒn//ˈpljuːst(ə)n/