DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   cf
       adv 1: compare (used in texts to point the reader to another
              location in the text) [syn: cf., cf]
       n 1: a radioactive transuranic element; discovered by bombarding
            curium with alpha particles [syn: californium, Cf,
            atomic number 98]
       2: 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 [syn:
          cystic fibrosis, CF, fibrocystic disease of the
    pancreas, pancreatic fibrosis, mucoviscidosis]