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The temperature, equal to 0°C (32°F), at which pure water and ice are in equilibrium in a mixture at 1 atmosphere of pressure.
(Chemistry) the temperature at which a mixture of ice and water are in equilibrium at a pressure of one atmosphere. It is 0° on the Celsius scale and 32° on the Fahrenheit scale. Compare steam point
the temperature at which a mixture of ice and air-saturated water at a pressure of one atmosphere is in equilibrium, represented by 32°F (0°C). Compare steam point.