Attributive Designating a scale of absolute temperature (i.e. one with its zero identified with absolute zero) in which the degrees are equal in size to those on the Fahrenheit scale; especially in "Rankine scale".

The relationships between the Rankine scale and other scales are as follows (F = Fahrenheit, C = Celsius): °R = °F + 459.67 = (°C + 273.15) × 9/5.

As postpositive. Of a thermometric degree or specified number of degrees: measured on the Rankine scale.