degree Celsius

(°C)
   a metric unit of temperature. The Celsius temperature scale is named for the Swedish astronomer and physicist Anders Celsius (1701-1744), who used a similar scale. The freezing point of water (at one atmosphere of pressure) was originally defined to be 0 °C, while the boiling point is 100 °C. Thus the Celsius degree is 1/100 of the difference between these two temperatures. (The scale actually used by Celsius was inverted, so that 0 °C was the boiling point of water and 100 °C the freezing point.) In the SI system, the Celsius scale is defined so that the temperature of the triple point of water (the temperature at which water can exist simultaneously in the gaseous, liquid, and solid states) is exactly 0.01 °C, and the size of the degree is 1/273.16 of the difference between this temperature and absolute zero (the temperature at which all molecular motion ceases). For practical purposes this is equivalent to the original definition.
   See also degree Fahrenheit, kelvin.

Dictionary of units of measurement. 2015.

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  • degree Celsius — noun a degree on the centigrade scale of temperature • Syn: ↑degree centigrade, ↑C • Hypernyms: ↑degree • Hyponyms: ↑standard temperature * * * degree Celsius A derived SI unit, the unit of Celsius temperature (s …   Useful english dictionary

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  • degree Celsius — noun A metric unit of temperature, a derived unit of the International System of Units. Symbol: °C …   Wiktionary

  • Celsius — For other uses, see Celsius (disambiguation). Celsius temperature conversion formulae from Celsius to Celsius Fahrenheit [°F] = [°C] × 9⁄5 + 32 [°C] = ([°F] − 32) × 5⁄9 Kelvin… …   Wikipedia

  • Degree (temperature) — For other uses, see Degree (disambiguation). The term degree is used in several scales of temperature. The symbol ° is usually used, followed by the initial letter of the unit, for example “°C” for degree(s) Celsius. A degree can be defined as a… …   Wikipedia

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  • degree centigrade — (°C)    an older name for the degree Celsius. The Celsius scale is called centigrade because it has 100 (centi ) gradations between the freezing point and boiling point of water. About 1850 scientists began calling the unit degree Celsius in… …   Dictionary of units of measurement

  • Celsius scale — (C) a temperature scale on which 0° is officially 273.15 kelvins and 100° is 373.15 kelvins. Before 1948 (and still, unofficially) the degree Celsius (°C) was called the degree centigrade (°C) with 0° at the freezing point of fresh water and 100° …   Medical dictionary

  • Celsius —    see degree Celsius. The word degree is often omitted in informal statements of temperature, as in we expect a high of about 23 Celsius today …   Dictionary of units of measurement

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