a·tor·va·stat·in 
(
ə-tôr
′v
ə-st
ăt
n)
n. A statin drug, C33H34FN2O5, that blocks the body's synthesis of cholesterol and is used in its hydrated calcium form to lower cholesterol (especially LDL) levels and to reduce the risk of heart attack and stroke in individuals with elevated risk.
[ator-, of unknown origin + -vastatin, statin suffix; see PRAVASTATIN.]