respiratory Syllabification: (res·pi·ra·to·ry)Pronunciation: /ˈrespərəˌtôrē, riˈspīrə-/Translate respiratory | into French | into German | into Italian | into Spanish Definition of respiratory adjective of, relating to, or affecting respiration or the organs of respiration:respiratory diseaserespiratory in other Oxford dictionaries Definition of respiratory in the British & World English dictionary