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heavy hydrogen

noun
  1. either of the heavy isotopes of hydrogen, especially deuterium.
  2. deuterium.
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Origin of heavy hydrogen

First recorded in 1930–35
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for heavy hydrogen

Historical Examples

  • Now a complete list of your uranium-refining plants, your military reactors, heavy-water and heavy-hydrogen plants, and so on.

    The Galaxy Primes

    Edward Elmer Smith

British Dictionary definitions for heavy hydrogen

heavy hydrogen

noun
  1. another name for deuterium
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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
heavy hydrogen in Medicine

heavy hydrogen

n.
  1. deuterium
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
heavy hydrogen in Science

heavy hydrogen

  1. See deuterium.
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The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.