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词汇 tritium
释义

Definition of tritium in English:

tritium

noun ˈtrɪtɪəmˈtrɪdiəm
mass nounChemistry
  • A radioactive isotope of hydrogen with a mass approximately three times that of the usual isotope.

    〔化〕(氢的放射性同位素)氚(符号: T

    Example sentencesExamples
    • Although tritium can be a gas, its most common form is in water, because, like non-radioactive hydrogen, radioactive tritium reacts with oxygen to form water.
    • The isotopes tritium and helium - 3 were used to identify and date ground water recharged in the past 50 years.
    • This particular arrangement of nucleons is unstable and so tritium readily undergoes radioactive decay to yield a helium atom.
    • Although many nuclei can be fused, this subject normally refers to fusion of hydrogen isotopes deuterium or tritium to form helium.
    • These products contain tiny glass vials filled with a radioactive gas such as tritium.

Discovered in 1934, tritium has two neutrons as well as a proton in the nucleus. It occurs in minute traces in nature and can be made artificially from lithium or deuterium in nuclear reactors; it is used as a fuel in thermonuclear bombs

Origin

1930s: from modern Latin, from Greek tritos 'third'.

Definition of tritium in US English:

tritium

nounˈtrɪdiəmˈtridēəm
Chemistry
  • A radioactive isotope of hydrogen with a mass approximately three times that of the common protium isotope.

    〔化〕(氢的放射性同位素)氚(符号: T

    Discovered in 1934, tritium has two neutrons as well as a proton in the nucleus. It occurs in minute traces in nature and can be made artificially from lithium or deuterium in nuclear reactors; it is used as a fuel in thermonuclear bombs

    Example sentencesExamples
    • Although tritium can be a gas, its most common form is in water, because, like non-radioactive hydrogen, radioactive tritium reacts with oxygen to form water.
    • The isotopes tritium and helium - 3 were used to identify and date ground water recharged in the past 50 years.
    • These products contain tiny glass vials filled with a radioactive gas such as tritium.
    • Although many nuclei can be fused, this subject normally refers to fusion of hydrogen isotopes deuterium or tritium to form helium.
    • This particular arrangement of nucleons is unstable and so tritium readily undergoes radioactive decay to yield a helium atom.

Origin

1930s: from modern Latin, from Greek tritos ‘third’.

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