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

See Examples For:

protium

You, Colonel Armstadt, hold in your protium secret the power of Germany to continue the war against the world.

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

There is but one thing you can do for us and that is to find some way to get word of the protium mines to the authorities of the World State.

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

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

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)

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)