say it: pree-KAN-sur-uhs
precancerous is an adjective meaning "of or relating to a growth that is not malignant but is likely to become so if not treated". It carries one recorded sense.
of or relating to a growth that is not malignant but is likely to become so if not treated
Definitions, synonyms and semantic relations for precancerous come from Princeton University’s WordNet. The pronunciation comes from the CMU Pronouncing Dictionary. Commonness is measured against a corpus of everyday English. Full sources and licences.