An Etymological Dictionary of Astronomy and Astrophysics

A temperature scale in which the → freezing point and the → boiling point of → water are set to 0 and 80 degrees respectively. See also → Celsius scale, → Fahrenheit scale, → Kelvin scale, → Rankine scale.

See also: Named after René Antoine Ferchault de Réaumur (1683-1757), who first proposed it in 1730; → scale.