radium emanation

American  

noun

Chemistry.

1. (formerly) radon.

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Etymology

Origin of radium emanation

First recorded in 1900–05

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Example Sentences

See Examples For:

radium emanation

He was in the midst of an article by a famous scientist on radium emanation, when John Minute continued a conversation which he had broken off an hour ago.

From The Man Who Knew by Edgar Wallace

Mix very slowly and quietly in order not to release too much of the radium emanation.

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

In addition, the spectral lines of uranium, radium, and the radium emanation have been reported as being found in the sun's spectrum and also in the new star, Nova Geminorum 2.

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

A. Oxygenator    A radium emanation for the bath.

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

This radium emanation is dissolved in the soil waters, wells, springs, and rivers, rendering them more or less radio-active, and sometimes the muddy deposit at the bottom of a spring shows decided radio-activity.

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

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