daunorubicin UK /ˌdɔː.nə(ʊ)ˈɹuː.bɪs.ɪn/US /ˌdɔn.əˈɹu.bɪs.n̩/ noun1 •A synthetic anthracycline antibiotic C₂₇H₂₉NO₁₀ which is a nitrogenous glycoside that interferes with DNA synthesis and is used in the treatment of acute leukemia and other cancers. formsdaunorubicins