/ Dictionary / Index P protensive: Meaning and Definition of Find definitions for: pro•ten•sive Pronunciation: (prō-ten'siv), [key] — adj. Archaic. extended in dimension or extended in time. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. protend proteoglycan Related Content Daily Word Quiz: opulent Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language