Skip to definition.
Get the FREE one-click dictionary software for Windows or the iPhone/iPad and Android apps


Noun: plankton  plangk-tun
  1. The aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water

Derived forms: planktons

Type of: being, organism

Part of: aggregate, congeries, conglomeration

Encyclopedia: Plankton, Aerosol, Cloud, ocean Ecosystem