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supercool

American  
[soo-per-kool] / ˌsu pərˈkul /

verb (used with object)

  1. to cool (a liquid) below its freezing point without producing solidification or crystallization; undercool.


verb (used without object)

  1. to become supercooled.

adjective

  1. very cool in temperature, especially of the maximum coolness possible: used as a setting on air conditioners.

  2. Slang. very cool; very sophisticated, up-to-date, unemotional, etc.

supercool British  
/ ˌsuːpəˈkuːl /

verb

  1. chem to cool or be cooled without freezing or crystallization to a temperature below that at which freezing or crystallization should occur. Supercooled liquids are not in equilibrium

"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

supercool Scientific  
/ so̅o̅′pər-ko̅o̅l /
  1. To cool a substance below a phase-transition temperature without the transition occurring. For example, water can be cooled well below the freezing point without freezing (as often happens in the upper atmosphere); the introduction of an impurity or surface can then trigger freezing. Supercooling is an example of hysteresis.

  2. Compare superheat


Etymology

Origin of supercool

First recorded in 1905–10; super- + cool

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.

“It’s supercool work,” says Natasha Jaques, a computer scientist at Google who studies machine learning but who was not involved with the research.

From Science Magazine • Sep. 18, 2022

To me, that is a supercool scientific puzzle: Why is it that sometimes adolescents do not show this peak in sensitivity to things that are rewarding, whether it’s risk-taking or helping others?

From Washington Post • Aug. 9, 2022

The United States, which produces 96.7 bcfd of gas, has the capacity to supercool about 12.7 bcfd into liquid for transportation by tanker.

From Reuters • Mar. 25, 2022

“The Art of Theater” and “With My Own Hands,” both by the French playwright, director and choreographer Pascal Rambert, survived the Under the Radar cancellation at this supercool avant-garde hothouse in Columbia County.

From New York Times • Jan. 17, 2022

Kind of a weird guy, but still supercool.

From "All American Boys" by Jason Reynolds

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