Cf and Cystic fibrosis

Cf noun - A radioactive transuranic element; discovered by bombarding curium with alpha particles.

Cystic fibrosis and cf are semantically related. In some cases you can use "Cystic fibrosis" instead a noun "Cf".

Cystic fibrosis noun - The most common congenital disease; the child's lungs and intestines and pancreas become clogged with thick mucus; caused by defect in a single gene; no cure is known.

Cf and cystic fibrosis are semantically related. You can use "Cf" instead a noun phrase "Cystic fibrosis".