Pronunciation: (BY-oh-LAH-jih-kul)

Pertaining to biology or to life and living things. In medicine, refers to a substance made from a living organism or its products. Biologicals may be used to prevent, diagnose, treat or relieve of symptoms of a disease. For example, antibodies, interleukins, and vaccines are biologicals. Biological also refers to parents and children who are related by blood.

Source: NCI Dictionary of Cancer Terms

Date last modified: 2007-04-19