Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun deuterium

1 sense of deuterium

Sense 1
deuterium, heavy hydrogen -- (an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen))
       => hydrogen atom -- (an atom of hydrogen)
       => isotope -- (one of two or more atoms with the same atomic number but with different numbers of neutrons)