do·​sim·​e·​ter | \ dō-ˈsi-mə-tər How to pronounce dosimeter (audio) \

Definition of dosimeter

: an instrument for measuring and monitoring exposure to doses of radiation (such as X-rays or gamma rays) Her team used a mathematical model and dosimeter readings to estimate neighborhood radiation exposures for the nearly 160,000 people living within a 10-mile radius of the plant.— Rick Weiss — see dosimetry

Examples of dosimeter in a Sentence

Recent Examples on the Web He was handed a dosimeter, the device used to measure [ionizing] radiation, and used it to measure the levels in tap water. Jennifer Nalewicki, Smithsonian Magazine, 27 Apr. 2021 Radiation levels around her house are around 20 times the background level in Tokyo, according to a dosimeter reading carried out by Reuters. Reuters, ABC News, 11 Mar. 2021 One of these was a new dosimeter operated by Wimmer-Schweingruber and his colleagues in Germany and China. Adam Mann, Science | AAAS, 25 Sep. 2020 The specialized dosimeter measured both charged and neutral particles. Adam Mann, Science | AAAS, 25 Sep. 2020 In order to minimize exposure to radiation, the guides carry dosimeters and instruct their customers not to eat or smoke outside. Fox News, 2 Mar. 2020 The noise crescendoed and seemed inextinguishable, oddly reminiscent of the dosimeters in HBO’s recent portrayal of the Chernobyl disaster. Jake Fischer,, 5 July 2019 His dosimeter, Japanese-made, hung from a lanyard around his neck. Aaron Gilbreath, Longreads, 10 Apr. 2018 Sky News correspondent Tom Cheshire said his team's satellite phone and radiation dosimeter -- a device to measure nuclear radiation -- was confiscated by security at Wonsan airport. James Griffiths, CNN, 23 May 2018 See More

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'dosimeter.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of dosimeter

1906, in the meaning defined above

History and Etymology for dosimeter

Late Latin dosis + International Scientific Vocabulary -meter

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Time Traveler for dosimeter

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The first known use of dosimeter was in 1906

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Cite this Entry

“Dosimeter.” Dictionary, Merriam-Webster, Accessed 18 Aug. 2022.

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More Definitions for dosimeter


do·​sim·​e·​ter | \ dō-ˈsim-ət-ər How to pronounce dosimeter (audio) \
variants: also dosemeter \ ˈdō-​ˌsmēt-​ər How to pronounce dosimeter (audio) \

Medical Definition of dosimeter

: an instrument for measuring and monitoring exposure to doses of radiation (as X-rays or gamma rays) To estimate typical exposures, the researchers are now correlating specific job tasks with individual exposure levels, using data from hundreds of dosimeters worn by workers.— Carol Ezzell, Science News — see dosimetry

More from Merriam-Webster on dosimeter Encyclopedia article about dosimeter


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