/ ˈtrɪtiəm; NAmE / noun
[ U ] ( symb T ) an isotope (= a different form) of hydrogen with a mass that is three times that of the usual isotope
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WORD ORIGIN
1930s: from modern Latin , from Greek tritos third.
/ ˈtrɪtiəm; NAmE / noun
[ U ] ( symb T ) an isotope (= a different form) of hydrogen with a mass that is three times that of the usual isotope
••
WORD ORIGIN
1930s: from modern Latin , from Greek tritos third.
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005