nannoplankton: Meaning and Definition of

nan•no•plank•ton

Pronunciation: (nan"u-plangk'tun), [key]
— n.
  1. the smallest of the microplankton; the aquatic organisms that can pass through fine mesh plankton nets.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.