beta-carotene

Definition of beta carotene

beta carotene

(BAY-tuh KAYR-uh-teen)
A substance found in yellow and orange fruits and vegetables and in dark green, leafy vegetables. The body can make vitamin A from beta carotene. Beta carotene is being studied in the prevention of some types of cancer. It is a type of antioxidant.

Source: NCI Dictionary of Cancer Terms