cardiorespiratory Syllabification: (car·di·o·res·pi·ra·to·ry)Pronunciation: /ˌkärdēōˈresp(ə)rəˌtôrē, -rəˈspīrə-/Definition of cardiorespiratory adjective Medicine relating to the action of both heart and lungs. cardiorespiratory in other Oxford dictionaries Definition of cardiorespiratory in the British & World English dictionary