1. deuterium

noun. ['duːˈtiːriːəm'] an isotope of hydrogen which has one neutron (as opposed to zero neutrons in hydrogen).


  • hydrogen atom
  • heavy hydrogen

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Rhymes with Deuterium

  • mysterium

How do you pronounce deuterium?

Pronounce deuterium as duˈtiriəm.

US - How to pronounce deuterium in American English

UK - How to pronounce deuterium in British English

Sentences with deuterium

1. Noun, singular or mass
Even deuterium may be ignored, since it is an isotope of hydrogen.

2. Verb, base form
When tritium is fused to deuterium, another isotope of hydrogen, massive amounts of atomic energy are released.