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Definition of Deuterium
1. Noun. An isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen). 
Definition of Deuterium
1. [n -S]
Medical Definition of Deuterium
1. 
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1. Noun. An isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen). 
1. [n -S]
1.