cystic fibrosis
Concise Oxford English Dictionary © 2008 Oxford University Press:
cystic fibrosis/sɪstɪkfʌɪˈbrəʊsɪs/
▶noun a hereditary disorder which affects the exocrine glands and results in the production of abnormally thick mucus, leading to the blockage of the pancreatic ducts, intestines, and bronchi.
'cystic fibrosis' also found in these Oxford entries:

