| The American Heritage® Dictionary of the English Language: Fourth Edition. 2000. |
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| Geiger tube |
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| NOUN: | A metal or glass tube filled with gas that is ionized by passing charged particles, producing within the tube an electric charge indicative of a particular particle. | | ETYMOLOGY: | After Hans Wilhelm Geiger (1882–1945), German physicist.
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| The American Heritage® Dictionary of the English Language, Fourth Edition. Copyright © 2000 by Houghton Mifflin Company. Published by the Houghton Mifflin Company. All rights reserved. |
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