dosimeter

noun

do·​sim·​e·​ter dō-ˈsi-mə-tər How to pronounce dosimeter (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
But the European Space Agency contributed five mobile dosimeters to measure radiation throughout the Orion spacecraft. — Ashley Strickland, CNN, 19 Sep. 2024 The numbers were climbing on a radiation dosimeter as the minibus carried me deeper into the complex. — Tim Hornyak, The Atlantic, 6 Sep. 2023

Word History

Etymology

Late Latin dosis + International Scientific Vocabulary -meter

First Known Use

1906, in the meaning defined above

Time Traveler
The first known use of dosimeter was in 1906

Rhymes for dosimeter

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Browse Nearby Words

do-si-do
dosimeter
dosimetrist
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Cite this Entry

“Dosimeter.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/dosimeter. Accessed 29 Mar. 2025.

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Kids Definition

dosimeter

noun
do·​sim·​e·​ter dō-ˈsim-ət-ər How to pronounce dosimeter (audio)
: an instrument for measuring doses of X-rays or of radioactivity

Medical Definition

dosimeter

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

Britannica.com: Encyclopedia article about dosimeter

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