/ Dictionary / Index R RFLP: Meaning and Definition of Find definitions for: RFLP Pronunciation: (rif'lip"), [key] restriction fragment length polymorphism: a fragment of DNA, cut by a restriction enzyme, that is different in length for each genetically related group and is used to trace family relationships. Also called riflip. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. RFI RFQ Related Content Daily Word Quiz: perspicacious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language