Precancerous is a synonym of premalignant.
As adjectives the difference between premalignant and precancerous
is that premalignant is precancerous while precancerous is of or pertaining to growth that is likely to develop into cancer.
precancerous
English
Alternative forms
* pre-cancerous
Adjective
(-)
(oncology) Of or pertaining to growth that is likely to develop into cancer.
Synonyms
* premalignant