/ Dictionary / Index E experimental: Meaning and Definition of Find definitions for: ex•per•i•men•tal Pronunciation: (ik-sper"u-men'tl), [key] — adj. pertaining to, derived from, or founded on experiment: an experimental science. of the nature of an experiment; tentative: The new program is still in an experimental stage. functioning as an experiment or used for experimentation: an experimental airplane. based on or derived from experience; empirical: experimental knowledge. —n. something that is experimental. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: experimental (Thesaurus) experiment experimentalism Related Content Daily Word Quiz: endear Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language