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| cys·tic fi·bro·sis [ sìstik fī brṓssiss ] |
noun |
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hereditary disease: a hereditary disease starting in infancy that affects various glands and results in secretion of thick mucus that blocks internal passages, including those of the lungs, causing respiratory infections. The pancreas is also affected, resulting in a deficiency of digestive enzymes and impaired nutrition.
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