nanoplankton

From nano- +‎ plankton.

nanoplankton (countable and uncountable, plural nanoplanktons)

1. plankton between 2 and 20 microns in size.

• Can refer to other size ranges

• megaplankton (>20cm), macroplankton (2-20 cm), mesoplankton (0.2-20mm), microplankton (20-200μm), (2-20μm), picoplankton (0.2-2μm), femtoplankton (<0.2μm)

• nannoplankton