Chemical, viral, radioactive or other agent that causes cancer; carcinogenic.
Anything that may give rise to or cause cancer.
Causing tumours to develop.
Describing a substance, organism, or environment that is known to be a causal factor in the production of a tumor. Some animal viruses are known to be oncogenic; others are suspected of being so in man, including herpes virus, Epstein-Barr virus, and some reoviruses.
Related to oncogenesis. Oncology is the study of elements influencing tumor development.