tritium C2 Topic:General Vocabulary US /ˈtɹɪt.i.əm/ UK /ˈtɹɪt.i.əm/ See IPA manual Freq #80501 Meanings 1 noun a radioactive isotope of hydrogen whose nucleus contains one proton and two neutrons; symbol 3H or T A fusion experiment may use tritium together with deuterium as fuel. Thesaurus Synonyms 1 noun · a radioactive isotope of... hydrogen-3 Word family Derived forms tritiated Related forms hydrogendeuteriumisotopetriton Etymology From New Latin tritium, formed from Greek tritos ("third") + -ium. The name refers to its mass number of three, distinguishing it from ordinary hydrogen and deuterium. Topics General Vocabulary External links Google Images Cambridge Dictionary Wiktionary # tritium **Type:** Word **Level:** C2 **Part of speech:** noun **IPA (US):** /ˈtɹɪt.i.əm/ **IPA (UK):** /ˈtɹɪt.i.əm/ **Frequency rank:** 80501 ## Meanings 1. a radioactive isotope of hydrogen whose nucleus contains one proton and two neutrons; symbol 3H or T ## Examples - A fusion experiment may use tritium together with deuterium as fuel. ## Synonyms - hydrogen-3 ## Derived Forms - tritiated ## Related Forms - hydrogen - deuterium - isotope - triton ## Etymology From New Latin tritium, formed from Greek tritos ("third") + -ium. The name refers to its mass number of three, distinguishing it from ordinary hydrogen and deuterium. ## Topics - General Vocabulary markdown