cold fusion

American  

noun

1. a hypothetical form of nuclear fusion postulated to occur at relatively low temperatures and pressures, as at room temperature and at one atmosphere.

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cold fusion Cultural  

1. The fusion of hydrogen atoms into helium at room temperature. In 1989 two scientists announced that they had produced cold fusion in their laboratory, an achievement that — if true — would have meant a virtually unlimited cheap energy supply for humanity. When other scientists were unable to reproduce their results, the scientific community concluded that the original experiment had been flawed.

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Etymology

Origin of cold fusion

First recorded in 1985–90

Example Sentences

Yet it’s hard to sketch out a scenario in which the financial system is brought to its knees by a switch to cold fusion.

From Washington Post • Mar. 16, 2022

He also supported and conducted research on cold fusion.

From Seattle Times • Mar. 9, 2022

The book marked a transition for Ferreira, as he spent less time doing labour-intensive web design and more time searching for the cold fusion of internet marketing: “passive income.”

From The Guardian • Apr. 17, 2018

The cold fusion theory soon went down in flames.

From Textbooks • Oct. 13, 2016

So much for “convergence theory,” which like EST or cold fusion went the way of most crackpot ideas.

From Salon • May 27, 2015