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.
to try or test, esp. in order to discover or prove something: to experiment with a new procedure.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.