IPA: /priˈkænərəs/
KK: /priˈkænərəs/
Describing a condition that may develop into cancer or is likely to become cancerous.
The doctor found a precancerous lesion during the examination.
Precancerous → It is formed from "pre-" (meaning before) and "cancer" (from Latin "cancer", meaning crab or tumor). The word "precancerous" refers to a condition that occurs before the development of cancer.
Think of something that happens 'before' ('pre-') cancer ('cancer') — that's why precancerous means a state that may lead to cancer.