|rāō|myu̇(ə)r, -āə|m-, -_mər adjective
Usage: usually capitalized
Etymology: after René Antoine Ferchault de Réaumur died 1757 French physicist who formulated the Reaumur scale
: relating or conforming to a thermometric scale on which under standard atmospheric pressure the boiling point of water is at 80 degrees above the zero of the scale and the freezing point is at zero — abbr. R