absolute zero

noun

: a theoretical temperature characterized by complete absence of heat and motion and equivalent to exactly −273.15°C or −459.67°F

Examples of absolute zero in a Sentence

Recent Examples on the Web They're also designed to operate at cryogenic temperatures close to absolute zero (around minus 459 degrees Fahrenheit). Kate Irwin, PCMAG, 23 Oct. 2024 To perform quantum experiments, physicists typically have to put atoms in vacuums or subject them to temperatures near absolute zero. Shayla Love, The Atlantic, 11 Oct. 2024 Like Luke Skywalker on Hoth cold–just a few degrees above absolute zero. Alex Knapp, Forbes, 27 Sep. 2024 Scientific research shows that tardigrades, when in a tun state, can survive temperatures from just above absolute zero (-459.67°F or -272°C) to over 302°F. Scott Travers, Forbes, 13 Sep. 2024 See all Example Sentences for absolute zero 

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'absolute zero.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1798, in the meaning defined above

Time Traveler
The first known use of absolute zero was in 1798

Dictionary Entries Near absolute zero

Cite this Entry

“Absolute zero.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/absolute%20zero. Accessed 4 Nov. 2024.

Kids Definition

absolute zero

noun
: a hypothetical temperature that has never been reached, represents no heat at all, and is equal to approximately −273.15°C or −459.67°F

Medical Definition

absolute zero

noun
: a theoretical temperature characterized by complete absence of heat and equivalent to exactly −273.15°C or −459.67°F

More from Merriam-Webster on absolute zero

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