transcontinental Syllabification: (trans·con·ti·nen·tal)Pronunciation: /ˌtranskäntəˈnentl, ˌtranz-/Translate transcontinental | into Italian Definition of transcontinental adjective (especially of a railroad line) crossing a continent. extending across or relating to two or more continents:a transcontinental radio audience noun Canadian a transcontinental railroad or train. Derivatives transcontinentally adverb transcontinental in other Oxford dictionaries Definition of transcontinental in the British & World English dictionary