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experiment (up)on (someone or something)
To perform tests on someone or something in order to gain insight and data about it. We got approval to start experimenting on mice, so we can see how the procedure affects their islet cells.
experiment in (something)
To test or do research in a particular subject or area. My sister is experimenting in astrophysics and has done some very fascinating research.
experiment with (something)
1. Literally, to use something as a component in research or tests. We got approval to start experimenting with this new procedure on mice, so we can see how the procedure affects their islet cells.
2. By extension, to try doing or using something new. I'm experimenting with basil tonight, even though I don't usually include it in this recipe. I just don't like the synth-heavy sound the band's experimenting with on this album.
experiment in something
to conduct research or experiments about something. The research group is experimenting in the field of biomechanics. We want to experiment in thermodynamics.
experiment (up)on someone or something
to use someone or something as the subject of an experiment. (Upon is formal and less commonly used than on.) Do you think we should experiment upon people? The researchers were experimenting on a new drug that might cure rabies.
experiment with someone or something
to try different experiments on someone or something; to use different people or things as key variables in an experiment. They are supposed to be experimenting with new drugs. We no longer experiment with animals.