protium

American  

[proh-tee-uhm, -shee-uhm] / ˈproʊ ti əm, -ʃi əm /

noun

Chemistry.

1. the lightest and most common isotope of hydrogen. 1 H

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protium British  

/ ˈprəʊtɪəm /

noun

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

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protium Scientific  

/ prō′tē-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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Etymology

Origin of protium

First recorded in 1930–35; prot- + -ium

Example Sentences

My position as director of the protium works soon brought me into conference with Admiral von Kufner who was Chief of the Submarine Staff.

From City of Endless Night by Hastings, Milo M. (Milo Milton)

A fleet of ice crushers and exploring planes were sent to locate the protium mines of the Arctic.

From City of Endless Night by Hastings, Milo M. (Milo Milton)

The Staff discussed this and has assigned you to original research for the finding of a better method of the extraction of protium from the ore.

From City of Endless Night by Hastings, Milo M. (Milo Milton)

The voice was speaking monotonously and the words I heard were the words of the protium formulas, the false ones I had given the Chemical Staff.

From City of Endless Night by Hastings, Milo M. (Milo Milton)

"What do you say about this protium ore?" he asked; "will you be able to solve the problem?"

From City of Endless Night by Hastings, Milo M. (Milo Milton)