Réaumur /ɹeɪəʊˈmjʊə(ɹ)/adjective 1noun 1 adjective1 •Measured on the Réaumur scale.It is very cold,—fifteen degrees of frost Réaumur, but perfectly delicious, still, bright weather, and one feels jolly and energetic and amiably disposed towards everybody. — 1898 noun1 •Réaumur scale, a temperature scale in which the boiling point of water is 80 degrees and its freezing point is 0 degrees.
