[nan-uh-plangk-tuh n]


the smallest of the microplankton; the aquatic organisms that can pass through fine mesh plankton nets.

Origin of nannoplankton

1910–15; nanno- + plankton Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

nannoplankton in Science


Plankton of minute size, especially plankton composed of organisms measuring from 2 to 20 micrometers.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.