deuterium
/djuːˈtɪəɹɪəm/
deuterium
English
Noun Top 46,342
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Definition
An isotope of hydrogen with one proton and one neutron in each atom - ²₁H.
Etymology
From deutero- + -ium. Coined by American physical chemist Harold Urey, from Ancient Greek δεύτερος (deúteros, “second”).
Example Sentences
- "Heavy water is "heavy" because it contains deuterium."
- "There were about 80 deuteriums for every million protiums, and virtually no tritium."
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