/ Dictionary / Index P prime field: Meaning and Definition of Find definitions for: prime' field' Pronunciation: [key] — Math. Math. a field that contains no proper subset that is itself a field. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. prime cost prime ideal Related Content Daily Word Quiz: eureka Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language