Noun: A test done to discover something unknown, check an idea, or see how something works, especially in science. Verb: To try new ideas or methods to see what happens.
From Latin *experimentum* ‘a trial, proof’, from *experiri* ‘to try, test’. It shares roots with *experience*, both focused on learning by trying.
An experiment is curiosity with structure: you don’t just wonder, you set up a test. Even in daily life, when you ‘experiment’ with a new habit, you’re quietly acting like a scientist on yourself.
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