absolute zero


: 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 Jijo Malayil 7 days ago 0 Science London Underground hosts trials of GPS-alternative quantum compass Atoms when cooled to temperatures near absolute zero behave like waves and this helps researchers determine their velocity. Interesting Engineering, 24 June 2024 William Thomson, also known as Lord Kelvin, is best known for establishing the value of absolute zero. IEEE Spectrum, 2 June 2024 This material has a quantum critical point between two distinct Fermi liquid states that becomes clear and sharp at temperatures less than 50 thousandths of a degree above absolute zero, depending on the magnetic field. Douglas Natelson, Scientific American, 19 Mar. 2024 The photons have cooled to just a few degrees above absolute zero, and their wavelengths have stretched into the microwave part of the spectrum. Kenneth Chang, New York Times, 3 June 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 13 Jul. 2024.

Kids Definition

absolute zero

: 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

: 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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