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antihydrogen

[an-tee-hahy-druh-juh n, an-tahy-]
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noun Physics.
  1. the antimatter counterpart to hydrogen.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
British Dictionary definitions for antihydrogen

antihydrogen

noun
  1. 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 in Science

antihydrogen

[ăn′tē-hīdrə-jən, ăn′tī-]
  1. 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.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

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