Dictionary of Cancer Terms
View in Spanish: Sustancia biológica
Biologic agent (BY-uh-LAH-jik AY-jent)
A substance that is made from a living organism or its products and is used in the prevention, diagnosis, or treatment of cancer and other diseases. Biologic agents include antibodies, interleukins, and vaccines. Also called biological agent and biological drug.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.