Pyroscope
Pronunciation : Pyr"o*scope
Part of Speech : n.
Etymology : [Pyro- + -scope: cf. F. pyroscope.] (Physics)
Definition : Defn: An instrument for measuring the intensity of heat radiating from a fire, or the cooling influence of bodies. It is a differential thermometer, having one bulb coated with gold or silver leaf. [R.]
Source : Webster's Unabridged Dictionary, 1913