ethanum

== Latin == === Alternative forms === aethānum (proper to etymology as the first element is from aethēr) === Etymology === Internationalism. Compare English ethane. === Pronunciation === (Classical Latin) IPA(key): [eːˈtʰaː.nũː] (modern Italianate Ecclesiastical) IPA(key): [eˈtaː.num] === Noun === ēthānum n (genitive ēthānī); second declension (organic chemistry) ethane ==== Declension ==== Second-declension noun (neuter).