/ Dictionary / Index P pus: Meaning and Definition of Find definitions for: pus Pronunciation: (pus), [key] — n. a yellow-white, more or less viscid substance produced by suppuration and found in abscesses, sores, etc., consisting of a liquid plasma in which white blood cells are suspended. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: pus (Thesaurus) purview Pusan Related Content Daily Word Quiz: fervor Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language