adj. Of or pertaining to growth that is likely to develop into cancer.
The Century Dictionary and Cyclopedia
Prior to the occurrence of cancer.
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
adj. of or relating to a growth that is not malignant but is likely to become so if not treated
Word Usage
"Know Your ABCDE's Ronald Moy, a Beverly Hills, Calif., dermatologist and president of the American Academy of Dermatology, says skin cancers and precancerous conditions are often caught when patients come in for cosmetic procedures."