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Fahrenheit

American  
[far-uhn-hahyt, fahr-uhn-hahyt] / ˈfær ənˌhaɪt, ˈfɑr ənˌhaɪt /

noun

  1. Gabriel Daniel 1686–1736, German physicist: devised a temperature scale and introduced the use of mercury in thermometers.


adjective

  1. noting, pertaining to, or measured according to a temperature scale Fahrenheitscale in which 32° represents the ice point and 212° the steam point. F

Fahrenheit 1 British  
/ ˈfærənˌhaɪt /

adjective

  1.  F.  of or measured according to the Fahrenheit scale of temperature

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Fahrenheit 2 British  
/ ˈfaːrənhait /

noun

  1. Gabriel Daniel (ˈɡaːbrieːl ˈdaːnieːl). 1686–1736, German physicist, who invented the mercury thermometer and devised the temperature scale that bears his name

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Fahrenheit 1 Scientific  
/ fărən-hīt′ /
  1. Relating to or based on a temperature scale that indicates the freezing point of water as 32° and the boiling point of water as 212° under standard atmospheric pressure.


Fahrenheit 2 Scientific  
  1. German physicist who invented the mercury thermometer in 1714 and devised the Fahrenheit temperature scale.


Fahrenheit 1 Cultural  
  1. A temperature scale according to which water freezes at 32 degrees and boils at 212 degrees. The scale was devised by Gabriel Daniel Fahrenheit, an instrument maker of the eighteenth century, born in Germany.


Fahrenheit 2 Cultural  
  1. A temperature scale, used primarily in the United States, in which the freezing point of water is 32 degrees and the boiling point 212 degrees. Temperatures in this scale are denoted by °F or, in scientific usage, F alone. (Compare Celsius.)


Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

As of Tuesday morning, the substance was hovering between 90 and 92 degrees Fahrenheit and water was still flowing on it.

From Los Angeles Times • May 27, 2026

The planet's temperature is estimated to be around 175 degrees Fahrenheit.

From Science Daily • May 22, 2026

The skin of the plane would need to withstand temperatures up to 800 degrees Fahrenheit at top speed, and zero degrees—the external temperature—when the plane came to lower altitudes and slower speeds.

From The Wall Street Journal • May 18, 2026

French media reported that, on April 6, two users profited when they correctly estimated that the weather in Paris would reach a high of 21° Celsius, or 70° Fahrenheit, that day under odd circumstances.

From MarketWatch • Apr. 23, 2026

In the winter, the temperature can sink to 100 degrees below zero Fahrenheit.

From "Shipwreck at the Bottom of the World" by Jennifer Armstrong

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