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词汇 protium
释义

Definition of protium in English:

protium

noun ˈprəʊtɪəm
mass nounChemistry

  • The common, stable isotope of hydrogen, as distinct from deuterium and tritium.

    〔化〕氘

    Example sentencesExamples
    • His hypothesis was that the lighter and more abundant protium isotope would evaporate more quickly than the heavier hydrogen - 2 isotope.
    • The three isotopes are sometimes known by the names of protium, deuterium, and tritium.

Origin

1930s: modern Latin, from Greek prōtos 'first'.

Definition of protium in US English:

protium

noun
Chemistry

  • The common, stable isotope of hydrogen, as distinct from deuterium and tritium.

    〔化〕氘

    Example sentencesExamples
    • His hypothesis was that the lighter and more abundant protium isotope would evaporate more quickly than the heavier hydrogen - 2 isotope.
    • The three isotopes are sometimes known by the names of protium, deuterium, and tritium.

Origin

1930s: modern Latin, from Greek prōtos ‘first’.
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