/ Dictionary / Index P pentolite: Meaning and Definition of Find definitions for: pen•to•lite Pronunciation: (pen'tl-īt"), [key] — n. a high explosive consisting of pentaerythritol tetranitrate and TNT. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pentode pentomic Related Content Daily Word Quiz: simian Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language