/ Dictionary / Index P prox.: Meaning and Definition of Find definitions for: prox. Pronunciation: [key] proximo. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: prox (Thesaurus) prowler proxemics Related Content Daily Word Quiz: careening Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language