/ Dictionary / Index P propense: Meaning and Definition of Find definitions for: pro•pense Pronunciation: (prō-pens'), [key] — adj. Archaic. having a tendency toward; prone; inclined. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. propene propension Related Content Daily Word Quiz: fabricate Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language