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experiment

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UK:**UK and possibly other pronunciationsnoun: /ɪkˈspɛrɪmənt/, verb: /ɪkˈspɛrɪmənt/ /ɪkˈspɛrɪmɛnt/

US:USA pronunciation: IPAUSA pronunciation: IPA/n. ɪkˈspɛrəmənt; v. -ˌmɛnt/

US:USA pronunciation: respellingUSA pronunciation: respelling(n. ik sperə mənt; v. ek sperə ment′)



WordReference Random House Learner's Dictionary of American English © 2026
ex•per•i•ment /n. ɪkˈspɛrəmənt; v. -ˌmɛnt/USA pronunciation  n. 
  1. a test, trial, or set of actions, esp. one for the purpose of discovering something unknown or of testing a principle, law, or theory:[countable]a laboratory experiment.
  2. the conducting of such tests, trials, etc.:[uncountable]to prove by experiment.

v. 
  1. to try or test esp. in order to discover or prove something: [+ with + object]The chemist was experimenting with the formula.[+ on + object]The scientists experimented on two groups of subjects.
ex•per•i•men•tal, adj. 
ex•per•i•men•tal•ly, adv. 
ex•per•i•men•ta•tion /ɪkˌspɛrəmɛnˈteɪʃən/USA pronunciation  n. [uncountable]

WordReference Random House Unabridged Dictionary of American English © 2026
ex•per•i•ment  (n. ik sperə mənt;v. ek sperə ment′),USA pronunciation n. 
  1. a test, trial, or tentative procedure;
    an act or operation for the purpose of discovering something unknown or of testing a principle, supposition, etc.:a chemical experiment;a teaching experiment;an experiment in living.
  2. the conducting of such operations;
    experimentation:a product that is the result of long experiment.
  3. [Obs.]experience.

v.i. 
  1. to try or test, esp. in order to discover or prove something:to experiment with a new procedure.
  • Latin experīmentum. See experience, -ment
  • Middle English: proof 1325–75
ex•peri•ment′er, ex•peri•men′tor, ex•peri•men•ta′tor, n. 
    1. See trial. 2. research, investigation.

Collins Concise English Dictionary © HarperCollins Publishers::
experiment n /ɪkˈspɛrɪmənt/
  1. a test or investigation, esp one planned to provide evidence for or against a hypothesis: a scientific experiment
  2. the act of conducting such an investigation or test; experimentation; research
  3. an attempt at something new or different; an effort to be original
  4. an obsolete word for experience
vb /ɪkˈspɛrɪˌmɛnt/
  1. (intransitive) to make an experiment or experiments
Etymology: 14th Century: from Latin experīmentum proof, trial, from experīrī to test; see experienceexˈperiˌmenter n
'experiment' also found in these entries (note: many are not synonyms or translations):
Collocations: a [medical, chemical, scientific, physical, laboratory, nuclear] experiment, experiments on [animals, mice, humans, patients], an experiment in [shared, environmental, device-free] living, more...

🗣️Forum discussions with the word(s) "experiment" in the title:

an experiment in <a><the> web search
an experiment in certainty
an experiment that successfully proves a hypothesis is a measurement
an experiment was conducted on somebody?
an overambitious experiment "whose" unintended effects are...
as much from an experiment / as from an experiment
behind the Experiment
By farther experiment, observation, examination
Changing results in an experiment
children who are participants/participatory in the experiment
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constrained experiment
courage to experiment <with all> the knowledge
crunching up Alfred, that other girl, that boy, that crude and unsatisfactory experiment
delineate an experiment?
democratic experiment
do an experiment on/with rats
Do an experiment vs make an experiment
do/make experiment
do/make/run/perform an experiment
<experiment> as a verb
Experiment data vs. Experimental data
experiment in which mice <are / have been> conditioned
Experiment in which/where
Experiment number reduction
Experiment on experiment with
experiment vs experimentation
Experiment vs practical (science labs)
experiment with
experiment with
more...

Look up "experiment" at Merriam-Webster
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