noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   plankton between 2 and 20 microns in size. countable, uncountable
2. 2
   microscopic organisms found in plankton wordnet

Etymology

From nano- + plankton.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.