An isotope of hydrogen with one proton and one neutron in the nucleus having an atomic weight of 2.014.(noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "deuterium" in a sentence
"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."
"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"
"Of all the nuclear species found in nature, deuterium is the only one whose origin stems exclusively from the explosive origin of the Universe."