Thĕr'mo-scōpe, n.

Thĕr'mo-scōpe, n. [Fr. thermoscope, Sp. & It. termoscopio, from Gr. θέρμη, heat, θερμός, hot, and σκοπεῖν, to view.] Any instrument for indicating changes of temperature without indicating the degree of heat by which it is affected; especially, an instrument contrived by Count Rumford for measuring minute differences of temperature, and which, as modified by Professor Leslie, was afterward called the differential thermometer.