Definitions for réaumurˈreɪ əˌmyʊər
Random House Webster's College Dictionary
René Antoine Ferchault de, 1683–1757, French physicist and inventor.
(adj.)Also, Re′au•mur`. noting or pertaining to a temperature scale (Ré′aumur scale`) in which 0° represents the ice point and 80° represents the steam point.
Reaumur, Rene Antoine Ferchault de Reaumur(noun)
French physicist who invented the alcohol thermometer (1683-1757)
of or pertaining to Rene Antoine Ferchault de Reaumur; conformed to the scale adopted by Reaumur in graduating the thermometer he invented
a Reaumur thermometer or scale
The Nuttall Encyclopedia
French scientist, born in La Rochelle; made valuable researches and discoveries in the industrial arts as well as in natural history; is best known as the inventor of the thermometer that bears his name, which is graduated into 80 degrees from the temperature of melting ice to that of boiling water (1683-1757).