E. Cobham Brewer 1810–1897. Dictionary of Phrase and Fable. 1898.
Freezing-point.
We generally mean by this expression that degree of Fahrenheit’s thermometer which indicates the temperature of frozen water—viz. 32° above zero. If we mean any other liquid we add the name, as the freezing-point of milk, sulphuric ether, quicksilver, and so on. In Centigrade and Réaumur’s instruments zero marks the freezing-point.
