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Showing results for radium emanation. Search instead for actinium emanation.

radium emanation

American  

noun

Chemistry.
  1. (formerly) radon.


Etymology

Origin of radium emanation

First recorded in 1900–05

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

See Examples For:

A. Oxygenator    A radium emanation for the bath.

From Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration by Dechmann, Louis

The radium emanation is a gas about 111 times heavier than hydrogen; to this gas Sir William Ramsay has given the name niton.

From The Story of Alchemy and the Beginnings of Chemistry by Muir, M. M. Pattison

Decomposition of mucous membrane: Abdominal packs, partial packs, with vinegar and water, or salt and radium emanation, oxygenator and other baths, in case especially prescribed.

From Valere Aude Dare to Be Healthy, Or, The Light of Physical Regeneration by Dechmann, Louis

Radium then expels an alpha particle and becomes the gas, radium emanation, which is an analogue of argon and belongs to the zero group.

From A Brief Account of Radio-activity by Venable, Francis Preston

The alpha-ray particles appear to possess the mass of helium atoms, and the growth of helium has been detected by its spectrum in a tube of radium emanation.

From Darwin and Modern Science by Seward, A. C. (Albert Charles)

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