'Pyrometer' definitions:

Definition of 'pyrometer'

From: WordNet
noun
A thermometer designed to measure high temperatures

Definition of 'Pyrometer'

From: GCIDE
  • Pyrometer \Py*rom"e*ter\, n. [Pyro- + -meter: cf. F. pyrom[`e]tre.]
  • 1. (Physics) An instrument used for measuring the expansion of solid bodies by heat. [1913 Webster]
  • 2. (Physics) An instrument for measuring degrees of heat above those indicated by the mercurial thermometer. [1913 Webster]
  • Note: It is usually constructed so as to register the change which the heat to be measured produces in the length of some expansible substance, as a metallic rod, or in the intensity of a thermo-electric current. [1913 Webster] Pyrometric