noun, masculine/oˈθono/
ozono is masculine in Spanish.
ozone
Related: agujero de ozono, capa de ozono
Borrowed from German Ozon, coined 1840 by Christian Friedrich Schönbein, from Ancient Greek ὄζον (ózon), neuter participle of ὄζω (ózō, “to smell”), in reference to its pungent odor.