Dictionary of Cancer Terms
View in Spanish: Esteroide
Steroid (STAYR-oyd)
Any of a group of lipids (fats) that have a certain chemical structure. Steroids occur naturally in plants and animals or they may be made in the laboratory. Examples of steroids include sex hormones, cholesterol, bile acids, and some drugs.
Source: National Cancer Institute Dictionary of Cancer Terms, available at www.cancer.gov/dictionary.