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protium

[ proh-tee-uhm, -shee-uhm ]

noun

, Chemistry.
  1. the lightest and most common isotope of hydrogen. : 1 H


protium

/ ˈprəʊtɪəm /

noun

  1. the most common isotope of hydrogen, having a mass number of 1


protium

/ prōtē-əm,-shē-əm /

  1. The most abundant isotope of hydrogen, having an atomic mass of 1. Its nucleus consists of a single proton.
  2. See more at hydrogen


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Word History and Origins

Origin of protium1

First recorded in 1930–35; prot- + -ium
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Word History and Origins

Origin of protium1

C20: New Latin, from proto- + -ium
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Example Sentences

Nor did he possess any great knowledge of the protium mines, for he had never visited them.

I was immediately installed in my new office, as Director of the Protium Works.

I was prevented from doing this immediately by difficulties in the Protium Works.

We had supposed you would have been told when you were assigned to the protium research.

That is one reason I am so interested in this protium on which you chemists are working.

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protistologyproto-