Reaumur scale

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Réaumur scale

(General Physics) a scale of temperature in which the freezing point of water is taken as 0° and the boiling point is 80°
[C18: named after René Antoine Ferchault de Réaumur (1683–1757), French physicist, who introduced it]
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Noun1.Reaumur scale - a temperature scale on which water freezes at 0 degrees and boils at 80 degrees
temperature scale - a system of measuring temperature
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It might be 80, as in the Reaumur scale devised in 1730 that prevailed for at least a century in France (and still survives in pockets of that country, Germany, and Argentina), or 180, as in our Fahrenheit scheme.