/ Dictionary / Index P positive law: Meaning and Definition of Find definitions for: pos'itive law' Pronunciation: [key] customary law or law enacted by governmental authority (as distinguished from natural law). Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. positive ion positive lens Related Content Daily Word Quiz: frugal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language