/ Dictionary / Index E experimentation: Meaning and Definition of Find definitions for: ex•per•i•men•ta•tion Pronunciation: (ik-sper"u-men-tā'shun, -mun-), [key] — n. the act, process, practice, or an instance of making experiments. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: experimentation (Thesaurus) experimental theater experiment station 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