/ Dictionary / Index F fibrocystic disease: Meaning and Definition of Find definitions for: fibrocys'tic disease" Pronunciation: [key] — Pathol. Pathol. a common condition, occurring esp. among middle-aged women, characterized by the presence of one or more benign breast cysts, which may become swollen and painful. Also called Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. fibrocystic fibroid Related Content Daily Word Quiz: censure Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language