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: an instrument for detecting the presence and intensity of radiations (such as cosmic rays or particles from a radioactive substance) by means of their ionizing effect on an enclosed gas which results in a pulse that is amplified and fed to a device giving a visible or audible indication
Examples of Geiger counter in a Sentence
Recent Examples on the Web
Its solar panel, power cell, and rechargeable batteries provide reliable stand-alone power for a Geiger counter even under emergency conditions.
—IEEE Spectrum, 27 Aug. 2024
One man who was going around with a Geiger counter said that even the air around Giant Rock was jumping with cosmic rays of leftover clouds from the Nevada atom blast, or backwash from space ships.
—Alex Wigglesworth, Los Angeles Times, 23 June 2024
He was best known for, like, taking a hair clip and a pack of Dentyne and turning into a Geiger counter or something, and somehow this meant Forte stuck celery up his bum.
—Jordan Hoffman, Vulture, 4 Mar. 2024
The laptop crackled like a Geiger counter, reporting unseen traffic overhead.
—Brandon Loomis, The Arizona Republic, 20 May 2024
The answer could be the equivalent of prewar steel in a Geiger counter: data known to be free (or perhaps as free as possible) from generative AI’s touch.
—Rahul Rao, Scientific American, 28 July 2023
The one that most people are familiar with—mostly from movies—is the Geiger counter, which is also known as the Geiger-Muller counter.
—WIRED, 8 Sep. 2023
There were visible-light cameras, ultrasensitive microphones, spectrum analyzers and other sensors, including a Geiger counter, all of it connected to the cloud, where machine-learning algorithms would scan the data for anything unusual.
—Seth Fletcher, New York Times, 24 Aug. 2023
Compton received his Nobel Prize in 1927, shared with a pair of German scientists—one of whom would invent the Geiger counter.
—Brendan McAleer, Car and Driver, 22 July 2023
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Word History
Etymology
Hans Geiger †1945 German physicist
First Known Use
1924, in the meaning defined above
Dictionary Entries Near Geiger counter
Cite this Entry
“Geiger counter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Geiger%20counter. Accessed 16 Dec. 2024.
Kids Definition
Geiger counter
noun
Gei·ger counter
ˌgī-gər-
: an instrument for detecting the presence of cosmic rays or radioactive substances
Medical Definition
Geiger counter
noun
Gei·ger count·er
ˈgī-gər-ˌkau̇n-tər
: an instrument for detecting the presence and intensity of radiations (as cosmic rays or particles from a radioactive substance) by means of the ionizing effect on an enclosed gas which results in a pulse that is amplified and fed to a device giving a visible or audible indication
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