Definitions

from The American Heritage® Dictionary of the English Language, 5th Edition.

  • noun A naturally occurring isotope of hydrogen, H-2, having one proton and one neutron in the nucleus.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

  • noun physics An isotope of hydrogen formed of one proton and one neutron in each atom - 21H.
  • noun An atom of this isotope.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

  • noun an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)

Etymologies

from The American Heritage® Dictionary of the English Language, 4th Edition

[deuter(o)– + –ium.]

from Wiktionary, Creative Commons Attribution/Share-Alike License

Coined by Harold Urey, an American chemist, from Ancient Greek δεύτερος (deuteros, "second") + -ium.

Examples

  • The Theories still do not explain how the conservation of energy is broken, even if the hydrogen or deuterium translates to relativistic hydrogen inside a Casimir cavity the transition as noted by Mills is nonradiative, according to Mills a reaction is necessary inside the cavity but according to the H-M theory the hydrogen loses energy to the cavity walls but is then restored via the global vacuum energy as it exits the cavity.

    Will 2010 be the Year of Zero Point Energy?

  • The Theories still do not explain how the conservation of energy is broken, even if the hydrogen or deuterium translates to relativistic hydrogen inside a Casimir cavity the transition as noted by Mills is nonradiative, according to Mills a reaction is necessary inside the cavity but according to the H-M theory the hydrogen loses energy to the cavity walls but is then restored via the global vacuum energy as it exits the cavity.

    Printing: Will 2010 be the Year of Zero Point Energy?

  • The Theories still do not explain how the conservation of energy is broken, even if the hydrogen or deuterium translates to relativistic hydrogen inside a Casimir cavity the transition as noted by Mills is nonradiative, according to Mills a reaction is necessary inside the cavity but according to the H-M theory the hydrogen loses energy to the cavity walls but is then restored via the global vacuum energy as it exits the cavity.

    Will 2010 be the Year of Zero Point Energy?

  • The first ignating and moderating link in this chain, burning hydrogen to deuterium, is based on the weak force, which could then be called the Sunignator and

    The Nobel Prize in Physics 1979 - Presentation Speech

  • Of all the nuclear species found in nature, deuterium is the only one whose origin stems exclusively from the explosive origin of the Universe.

    Arno Penzias - Autobiography

  • Frogs and fishes swimming in water containing deuterium absorb it and, after about 4 hours, are in equilibrium with the medium as far as the deuterium is concerned.

    The Nobel Prize in Chemistry 1943 - Presentation Speech

  • Unlike nuclear fission, which tears apart atoms to release energy and highly radioactive by-products, fusion involves putting immense pressure, or "squeezing" two heavy hydrogen atoms, called deuterium and tritium together so they fuse.

    Nuclear Fusion Power Closer to Reality Say Two Separate Teams | Universe Today

  • Heavy water is pretty much just like regular water, but instead of hydrogen atoms it has deuterium, which is to say, hydrogen atoms with an extra neutron.

    Eleventh Hour: It Ain’t Heavy. It’s My Water.

  • Heavy water, which has a heavier form of hydrogen, called deuterium, in the water molecule, allows the reactor to operate with natural uranium as fuel rather than enriched uranium.

    Sleight of Hand

  • And the principal fuel, a heavy isotope of hydrogen called deuterium, is present in ordinary water, of which there is no shortage.

    Wasting Money on Fusion | Impact Lab

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