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1. (n.) deuterium
an isotope of hydrogen, having twice the mass of ordinary hydrogen; heavy hydrogen.
Etymology: (1933; < Gk deúter(os) second (see deutero -))
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| Definition of 'Deuterium' |
Princeton's WordNet |
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1. (noun) deuterium, heavy hydrogen
an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen)
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| Definition of 'Deuterium' |
U.S. National Library of Medicine |
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1. Deuterium
Deuterium. The stable isotope of hydrogen. It has one neutron and one proton in the nucleus.
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