1. A virus that causes or is capable of causing cancer in animals or humans.
Usage: technical; biology/medicine

Examples

• Researchers studied how the oncovirus integrates into the host cell's DNA.
• Some oncoviruses are transmitted through bodily fluids.
• The oncovirus was identified as a major risk factor in the development of the disease.
• Scientists are working to develop vaccines against certain oncoviruses.
• The oncovirus belongs to a family of retroviruses known for their carcinogenic properties.