/ray"euh myoor'/ ; Fr. /rdday oh myuurdd"/ , n.
1. René Antoine Ferchault de /rddeuh nay" ahonn twannn" ferdd shoh" deuh/ , 1683-1757, French physicist and inventor.
adj.
2. Also, Reaumur . noting or pertaining to a temperature scale (Réaumur scale) in which 0° represents the ice point and 80° represents the steam point. See illus. under thermometer .