/ Dictionary / Index F familial: Meaning and Definition of Find definitions for: fa•mil•ial Pronunciation: (fu-mil'yul, -mil'ē-ul), [key] — adj. of, pertaining to, or characteristic of a family: familial ties. appearing in individuals by heredity: a familial disease. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. See also: familial (Thesaurus) Fameuse familial hypercholesterolemia Related Content Daily Word Quiz: arboreal Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language