experiment

I UK [ɪkˈsperɪmənt] / US / US [ɪkˈsperɪment] noun
Word forms "experiment":
singular experiment plural experiments
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1) [countable] a scientific test to find out what happens to someone or something in particular conditions

Experiments show that many plants tolerate a wide range of light conditions.

laboratory experiments using electric shocks

experiment on/with:

a series of experiments on animals

do/carry out/conduct/perform an experiment:

Researchers now need to conduct further experiments.

2)

a) [countable] an occasion when you test a new idea, method, or activity to find out what the result will be

Let's try an experiment – we'll only use the Internet at weekends.

experiment in:

an experiment in tax reform

b) [uncountable] the process of testing various ideas, methods, or activities to see what effect they have

Experiment is necessary to find a treatment that suits you.

II UK [ɪkˈsperɪˌment] / US verb [intransitive]
Word forms "experiment":
present tense I/you/we/they experiment he/she/it experiments present participle experimenting past tense experimented past participle experimented
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1) to try new ideas, methods, or activities in order to find out what results they will have

a designer who is not afraid to experiment

experiment with:

She likes experimenting with different hairstyles.

2) to perform scientific tests in order to find out what happens to someone or something in particular conditions

experiment on/with:

This lab doesn't experiment on animals.