Breadcrumb Home > Thesaurus > P Synonyms of plankton Find synonyms for: Noun 1. plankton, organism, being usage: the aggregate of small plant and animal organisms that float or drift in great numbers in fresh or salt water WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of plankton (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: rosarium Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language