NCI Dictionary of Cancer Terms
The NCI Dictionary of Cancer Terms features 7,811 terms related to cancer and medicine.
Browse the dictionary by selecting a letter of the alphabet or by entering a cancer-related word or phrase in the search box.
- acquired immunodeficiency syndrome
- listen (uh-KWY-erd IH-myoo-noh-dih-FIH-shun-see SIN-drome)
- A disease caused by the human immunodeficiency virus (HIV). People with acquired immunodeficiency syndrome are at an increased risk for developing certain cancers and for infections that usually occur only in individuals with a weak immune system. Also called AIDS.