Pȳr'o-scōpe, n.

n. [Fr. pyroscope, from πῦρ, πυρός, fire, and σκοπεῖν, σκέπτεσθαι, to look carefully, to view.] 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.