fəˈnastəˌrīd noun
( -s )
Etymology: fina - (of unknown origin) + testo ster one + am ide
: a nitrogenous steroid derivative C 23 H 36 N 2 O 2 that inhibits the enzymatic conversion of testosterone to dihydrotestosterone and is used especially to treat symptoms of benign prostatic hyperplasia and to increase hair growth in male-pattern baldness