clarithromycin UK /kləˌɹɪθ.ɹəʊˈmʌɪ.sɪn/US /kləˌɹɪθ.ɹəˈmaɪ.sn̩/ noun1 •A semisynthetic macrolide antibiotic C₃₈H₆₉NO₁₃ (trademarks Biaxin, Klaricid) used especially in the treatment of various mild to moderate bacterial infections.
