deuterium
noun /djuːˈtɪəriəm/
  /duːˈtɪriəm/
[uncountable] (symbol D)
 (chemistry)- an isotope (= a different form) of hydrogen with twice the mass of the usual isotopeWord Origin1930s: modern Latin, from Greek deuteros ‘second’.
 
| 单词 | deuterium | 
| 释义 | deuteriumnoun /djuːˈtɪəriəm/   /duːˈtɪriəm/ [uncountable] (symbol D)  (chemistry)
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