/ Dictionary / Index P pea soup: Meaning and Definition of Find definitions for: pea' soup" Pronunciation: [key] a thick soup made from split peas. a dense, yellow fog. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. pea shrub pea-souper Related Content Daily Word Quiz: novice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language