/ Dictionary / Index C cystic fibrosis: Meaning and Definition of Find definitions for: cys'tic fibro'sis Pronunciation: [key] — Pathol. Pathol. a hereditary chronic disease of the exocrine glands, characterized by the production of viscid mucus that obstructs the pancreatic ducts and bronchi, leading to infection and fibrosis. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. cysticercus cystic mastitis Related Content Daily Word Quiz: jaundice Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language