butanum

== Latin == === Etymology === Internationalism. Compare English butane. === Pronunciation === (Classical Latin) IPA(key): [buːˈtaː.nũː] (modern Italianate Ecclesiastical) IPA(key): [buˈtaː.num] === Noun === būtānum n (genitive būtānī); second declension (organic chemistry) butane ==== Declension ==== Second-declension noun (neuter).