pyrometer Syllabification: (py·rom·e·ter)Pronunciation: /pīˈrämitər/Definition of pyrometer noun an instrument for measuring high temperatures, especially in furnaces and kilns. Derivatives pyrometricPronunciation: /ˌpīrōˈmetrik/ adjective pyrometricallyPronunciation: /ˌpīrōˈmetrik(ə)lē/ adverb pyrometryPronunciation: /-trē/ noun pyrometer in other Oxford dictionaries Definition of pyrometer in the British & World English dictionary