ra·​dio·​chem·​is·​try ˌrā-dē-ō-ˈke-mə-strē How to pronounce radiochemistry (audio)
: a branch of chemistry dealing with radioactive substances and phenomena including tracer studies
radiochemical adjective
radiochemically adverb
radiochemist noun

Example Sentences

Recent Examples on the Web Birnbaum launches into a primer on radiochemistry: Isotopes are chemical elements with too many or too few neutrons in their centers. Jacqueline Detwiler, Popular Mechanics, 1 Feb. 2020 In those early days, radiochemistry was a kind of scavenger hunt to collect and understand these features. New York Times, 28 Aug. 2019 The nuclear-research center was hit with five weapons, the radiochemistry laboratory was hit, Building 500 close to that laboratory was hit, and the fuel fabrication facility was hit. Uri Friedman, The Atlantic, 17 May 2017 After graduating from South Carolina State University with a degree in chemistry and a concentration in radiochemistry, McCullough now works as a nuclear scientist at the United States Nuclear Regulatory Commission. Julie Mazziotta,, 15 May 2017 McCullough earned her Bachelor of Science degree in chemistry with a concentration in radiochemistry from South Carolina State University. Mark Price, charlotteobserver, 15 May 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'radiochemistry.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1904, in the meaning defined above

Time Traveler
The first known use of radiochemistry was in 1904

Dictionary Entries Near radiochemistry

Cite this Entry

“Radiochemistry.” Dictionary, Merriam-Webster, Accessed 10 Jun. 2023.

Medical Definition


ra·​dio·​chem·​is·​try ˌrād-ē-ō-ˈkem-ə-strē How to pronounce radiochemistry (audio)
plural radiochemistries
: a branch of chemistry dealing with radioactive substances and phenomena including tracer studies

called also nuclear chemistry

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