Main Entry: fi·nas·te·ride

Pronunciation: \fə-ˈnas-tə-ˌrīd\

Function: noun

: a nitrogenous steroid derivative C₂₃H₃₆N₂O₂ that is used especially to treat symptoms of benign prostatic hyperplasia and to increase hair growth in male-pattern baldness and that acts by inhibiting the enzymatic conversion of testosterone to dihydrotestosterone—see propecia, proscar