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Definition of deuterium noun from the Oxford Advanced Learner's Dictionary

deuterium

noun
 
/djuːˈtɪəriəm/
 
/duːˈtɪriəm/
[uncountable]
(symbol D)
(chemistry)
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  1. an isotope (= a different form) of hydrogen with twice the mass of the usual isotope
    Word Origin1930s: modern Latin, from Greek deuteros ‘second’.
See deuterium in the Oxford Advanced American Dictionary
Check pronunciation: deuterium

Nearby words

trait
noun
 
 
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