Word.ws English Dictionary

Plural of organism

regular plural

The plural of organism is organisms.

Forms of organism

Singularorganism /ˈɔː.ɡə.nɪ.zəm/
Pluralorganisms
Countablecountable

Organisms in a sentence

  • This strategy, known as caloric restriction, has been shown to increase the life span of various organisms and reduce their rate of cancer and other age-related ailments.2019 July 16, Anahad O’Connor, “Cutting 300 Calories a Day Shows Health Benefits”, in The New York Times
  • The Burgess Shale contains fossils of very odd organisms that lived during the Acadian.From the entry Acadian
  • A polythetic taxon is one where the constituent organisms share a large number of characteristics.From the entry polythetic
  • The ability to reproduce is a defining characteristic of living organisms.From the entry defining
  • Multicellular organisms require a homeostatic internal environment in order to live.From the entry homeostatic

Meaning of organism

  1. noun A discrete and complete living thing, such as animal, plant, fungus or microorganism.
  2. noun Something with many separate interdependent parts, seen as being like a living thing; an organic system.
  3. noun The fact of being organic; organicity.

Full definition of organism

Questions about the plural of organism

What is the plural of organism?
The plural of organism is organisms.
Is organism countable?
Organism is a countable noun.

Source and license

Adapted from Wiktionary: organism (page history and authors) and the entries of its forms. Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws left out forms marked obsolete, archaic, rare or dialectal and added the examples. Wiktionary data of 2026-09-02.

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Cite this page: “Plural of organism.” Word.ws, https://word.ws/plural/organism. Based on Wiktionary, CC BY-SA 4.0.