n. Pertaining to, derived from, founded on, or known by experiment; given to or skilled in experiment: as, experimental knowledge or philosophy; an experimental philosopher.n. Taught by experience; having personal experience; known by or derived from experience; experienced.Of the nature of an experiment; characterized by experimentation; tentative: as, the experimental stage in the production of an invention, when it is being tested or examined to discover its uses and its behavior under commercial conditions or usage; an experimental scale, a limited or small scale.