noun
Réaumur temperature scale; degrees Réaumur
Abbreviation of 列氏温度 (Réaumur temperature scale). Used in technical or historical contexts; the Réaumur scale is rarely used today.
See also: 列氏温度
この古い温度計は列氏で目盛りが刻まれている。
This old thermometer is graduated in degrees Réaumur.
Fahrenheit scale; used in some contexts, especially in the US.
Abbreviation of 列氏温度 (Réaumur temperature scale), named after René Antoine Ferchault de Réaumur.