/ Dictionary / Index E experimental theater: Meaning and Definition of Find definitions for: exper'imen'tal the'ater Pronunciation: [key] the presentation of innovative works and the development of new concepts and techniques in stage production. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. experimental psychology experimentation Related Content Daily Word Quiz: procrastinate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language