Definition of Fahrenheit in English:


Line breaks: Fahr¦en|heit
Pronunciation: /ˈfar(ə)nhʌɪt
, ˈfɑː-/
(abbreviation: F)


[postpositive when used with a numeral]
Of or denoting a scale of temperature on which water freezes at 32° and boils at 212° under standard conditions: the temperature was steady at 65° Fahrenheit
More example sentences
  • If you heat up water to 212 degrees Fahrenheit, depending on pressure and so forth, it boils.
  • Water boils at 212 degrees Fahrenheit, or 100 degrees Celsius.
  • The tests included temperatures as cold as minus 112 degrees Fahrenheit to simulate the conditions of open space.


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(also Fahrenheit scale) The Fahrenheit scale of temperature.
More example sentences
  • The Fahrenheit and Celsius scales are based on two fixed points, the Kelvin and Rankine scales are based on one.
  • Likewise, we can measure temperatures on the Celsius or Fahrenheit scales.
  • The original zero point of the Fahrenheit temperature scale was set at the lowest temperature that could be reached in a mixture of salt and ice.


mid 18th century: named after Gabriel Daniel Fahrenheit (1686–1736), German physicist.

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