/ Dictionary / Index F FH: Meaning and Definition of Find definitions for: FH Pronunciation: [key] familial hypercholesterolemia. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. FGT FHA Related Content Daily Word Quiz: gregarious Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language