ALL meanings of pleuston
pleus·ton
P p - noun pleuston a buoyant mat of weeds, algae, and associated organisms that floats on or near the surface of a lake, river, or other body of fresh water. 1
- noun pleuston a mass of small organisms, esp algae, floating at the surface of shallow pools 0
- noun pleuston small organisms, as algae or gastropods, floating on or near the surface of a body of water 0