Réamur, René Antoine Ferchault de (1683–1757)French scientist, whose most important work was in entomology, but who is best remembered for devising the now little-used Réamur temperature scale, in which 0°'R = 0°C and 80°R = 100°C. Related category• PHYSICISTSAlso on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History |