Found 2 items, similar to plankton.
English → English (WordNet) Definition: plankton plankton n : the aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water
English → English (gcide) Definition: Plankton Plankton \Plank"ton\ (pl[a^][ng]k"t[o^]n), n. [NL., fr. Gr. plagto`n, neut. of plagto`s wandering, pla`zesqai to wander.] (Biol.) All the animals and plants, taken collectively, which live at or near the surface of salt or fresh waters. -- Plank*ton"ic, a. [Webster 1913 Suppl.]