pyroscope Meaning, Definition & Usage

  1. noun a pyrometer that uses the color of the light emitted by a hot object
    optical pyrometer.

WordNet

Pyr"o*scope noun
Etymology
Pyro- + -scope: cf. F. pyroscope.
Definitions
  1. (Physics) 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.

Webster 1913