a thermometer calibrated in accordance with the Fahrenheit scale; (also) the Fahrenheit scale; the Fahrenheit temperature.

a scale of temperature in which the freezing point of water is at 32° and the boiling point at 212°; also Fahrenheit temperature scale.

The Fahrenheit scale of temperature; a temperature expressed on this scale.

Physics. a scale of temperature introduced by Réaumur 1730, in which 0° is the freezing point of water and 80° the boiling point.

a thermometer calibrated in accordance with the Celsius scale; (also) the Celsius scale; the Celsius temperature.

The Réaumur scale of temperature.

The Celsius scale of temperature. Chiefly in degree of Celsius (cf. Celsius degree n. at sense A. 2b).

a scale of temperature in which 0° is the freezing point of water and 100° is the boiling point. Cf. centigrade, adj. 1a.

Of various English words. Physics. In form R (without point). = Réaumur scale n. at Réaumur, n. 1b.

Designating the scale of temperature used in the pyrometer invented by Josiah Wedgwood for testing the heat of kilns. The zero corresponds to 1077° F.

The centigrade scale of temperature; a temperature expressed on this scale.

= absolute scale n.

an absolute scale of temperature in which zero is identified with absolute zero and kelvins are the units of measurement; cf. sense A. 2.

attributive. Designating a scale of absolute temperature (i.e. one with its zero identified with absolute zero) in which the degrees are equal in…

a temperature on the Rankine scale.