Degree Rankine

**Semantic type:** Quantitative Concept

**Definition:** A unit of temperature defined as degrees Fahrenheit plus 459.67 and 0 degrees Rankine (R) is the lowest possible temperature, similar to Kelvin. The freezing point of water is 491.67 degrees R and its boiling point is 671.67 degrees R.

**Synonyms:** - Degree Ra - [degR] - degree Rankine