Dictionary Entry

organism

noun

Find the meaning of the word organism, plus dictionary definition, pronunciation, thesaurus-style synonyms, antonyms, and related vocabulary.

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Meaning

Dictionary meaning in a clear, student-friendly format.

any living thing, from bacteria to trees and animals [R — recycled from Day 3]

Example Sentence

Each organism in the pond, from the tiniest plankton to the largest fish, plays a role in the food web.

Usage Note

Use this word when talking about biology, nature, or environmental science to refer to any single living entity.