cold fusion

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.

cold fusion

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.

Word History and Origins

Origin of cold fusion¹

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

He also supported and conducted research on cold fusion.

From Seattle Times

The trick — or, maybe more aptly, the holy grail, the fountain of youth, Atlantis and cold fusion, stuffed into a spring roll — is to recognize now what won’t dissipate later.

From Washington Post

Nothing that I said is based on some type of new discovery that’s needed in cold fusion or AI.

From The Verge

The hydrogen plane is the industry’s recurrent dream, its equivalent of cold fusion or the driverless car.

From The Guardian