cf

(noun) a radioactive transuranic element; discovered by bombarding curium with alpha particles. Synonyms: californium, Cf, atomic number 98.

(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. Synonyms: cystic fibrosis, CF, fibrocystic disease of the pancreas, pancreatic fibrosis, mucoviscidosis.

(adv) compare (used in texts to point the reader to another location in the text). Synonyms: cf..