experiment.
A test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy or likelihood of something previously untried.
Meaning & usage
A test under controlled conditions made to either demonstrate a known truth, examine the validity of a hypothesis, or determine the efficacy or likelihood of something previously untried.
conduct an experiment
carry out some experiments
Experience, practical familiarity with something.
Where this word comes from
From Middle English experiment, from Old French esperiment (French expérience), from Latin experimentum (“experience, attempt, experiment”), from experior (“to experience, to attempt”), itself from ex + *perior, in turn from Proto-Indo-European *per-.
To conduct an experiment.
We're going to experiment on rats.
To experience; to feel; to perceive; to detect.
To test or ascertain by experiment; to try out; to make an experiment on.
To try something to observe the results.
I want to experiment with psychedelics.
Where this word comes from
From Middle English experiment, from Old French esperiment (French expérience), from Latin experimentum (“experience, attempt, experiment”), from experior (“to experience, to attempt”), itself from ex + *perior, in turn from Proto-Indo-European *per-.
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Definitions, grammatical labels, IPA, etymology and examples: Wiktionary contributors, extracted by Kaikki / Wiktextract. Adapted under CC BY-SA 4.0. Selected fields and authored examples are shown; third-party quotations and audio are omitted. See contributor history.
Last enriched 2026-09-10. Definitions are in English. Romanizations are shown when supplied by the source; syllable estimates are omitted for unsupported scripts.