Wiktionary
pre-cancerous
a. (alternative spelling of precancerous English)
Usage examples of "pre-cancerous".
In 1986 I asked him about an article he was preparing for the New England Journal of Medicine, indicating that cannabis smoke caused as many or more pre-cancerous lesions as tobacco in "equal" amounts.
Most people do not realize, nor are the media told, that any tissue abnormality (abrasion, eruption, or even redness) is called a pre-cancerous lesion.