Effective at fighting, preventing, or treating cancer and malignant tumors.
From anti- (against) + cancerous (having the nature of cancer), from Latin cancer. This is a variant of 'anticancer' with slightly more emphasis on the disease state.
The subtle difference between 'anticancer' and 'anticancerous' shows how English allows flexibility—one fights the disease itself, the other fights the cancerous condition, and scientists choose carefully depending on nuance.
Complete word intelligence in one call. Free tier — 50 lookups/day.