/ ɪkˌsperɪˈmentl; NAmE / adjective
1.
based on new ideas, forms or methods that are used to find out what effect they have :
experimental teaching methods
experimental theatre / art / music
The equipment is still at the experimental stage.
2.
connected with scientific experiments :
experimental conditions / data / evidence
► ex·peri·men·tal·ly / -təli; NAmE / adverb :
This theory can be confirmed experimentally.
The new drug is being used experimentally on some patients.
He moved his shoulder experimentally to see if it still hurt.
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WORD ORIGIN
late 15th cent. (in the sense having personal experience , also experienced, observed ): from medieval Latin experimentalis , from Latin experimentum , from experiri try.