Main Entry: ri·to·na·vir

Pronunciation: \ˌrī-ˈtō-nə-ˌvir, -ˈtä-, ri-\

Function: noun

Etymology: rito- (perhaps by shortening & alteration from protease) + -navir (as in saquinavir)

Date: 1995

: an antiviral protease inhibitor C₃₇H₄₈N₆O₅S₂ administered orally to treat HIV infection and AIDS