antihydrogen

American

[an-tee-hahy-druh-juhn, an-tahy-] / ˌæn tiˈhaɪ drə dʒən, ˌæn taɪ- /

noun

Physics.

the antimatter counterpart to hydrogen.

antihydrogen British

/ ˈæntɪˌhaɪdrədʒən /

noun

hydrogen in which the nucleus is an antiproton with an orbiting positron

"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

antihydrogen Scientific

/ ăn′tē-hī′drə-jən,ăn′tī- /

The antimatter that corresponds to hydrogen. Antihydrogen has been useful in studies of the relationship between matter and antimatter, because its matter equivalent (hydrogen) is one of the most studied and most well understood forms of matter.

Example Sentences

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See Examples For:

antihydrogen

Last year a separate team of researchers tested whether antihydrogen responded differently to gravity by seeing if it fell up or down when dropped.

From BBC ● Feb. 22, 2024

Thus, gravity was causing the antihydrogen to fall down.

From Science Daily ● Sep. 27, 2023

If Einstein was correct that antimatter and matter interact with gravity in the same way, the same proportion should hold true for the antihydrogen.

From Scientific American ● Sep. 27, 2023

The data agreed much better with simulations in which the antihydrogen experiences ordinary gravity than those in which they experienced antigravity or no gravity at all, the researchers report today in Nature.

From Science Magazine ● Sep. 27, 2023

Take antihydrogen, which is the antimatter version of hydrogen, used in the Cern experiments.

From BBC ● Sep. 27, 2023

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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023