/ Dictionary / Index P prius: Meaning and Definition of Find definitions for: pri•us Pronunciation: (prī'us), [key] — adj. (in prescriptions) before; former. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. Prithivi priv. Related Content Daily Word Quiz: vertigo Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language