rankine

noun

1. William John Mac·quorn [muh–kwawrn] /məˈkwɔrn/, 1820–70, Scottish engineer and physicist.

adjective

2. Thermodynamics. pertaining to an absolute temperature scale (Rankine scale) in which the degree intervals are equal to those of the Fahrenheit scale and in which 0° Rankine equals −459.7° Fahrenheit.Compare absolute temperature scale, Kelvin(defs 2, 3).