You searched for: “microplankton
microplankton (s) (noun), microplanktons (pl)
Very tiny plant or animal organisms: Echinopluteus sea urchin larva use their ciliated arms for feeding on microplankton which measure from 20 to 200 micrometers in length.
This entry is located in the following units: micro-, micr- (page 4) plankto-, plankt-, -plankton (page 3)