Aromatase inhibitors

Definition of aromatase inhibitor

aromatase inhibitor

(uh-ROH-muh-tays in-HIH-bih-ter)
A drug that prevents the formation of estradiol, a female hormone, by interfering with an aromatase enzyme. Aromatase inhibitors are used as a type of hormone therapy for postmenopausal women who have hormone-dependent breast cancer. Also called AI drug.

Source: NCI Dictionary of Cancer Terms