/ Dictionary / Index E exptl.: Meaning and Definition of Find definitions for: exptl. Pronunciation: [key] experimental. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. expt. expugnable Related Content Daily Word Quiz: paradox Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language