cos·​mo·​gen·​ic ˌkäz-mə-ˈje-nik How to pronounce cosmogenic (audio)
: produced by the action of cosmic rays
cosmogenic carbon 14

Examples of cosmogenic in a Sentence

Recent Examples on the Web The samples will be sent to a lab for cosmogenic nuclide analysis, a process that can date how long a rock has been exposed to the atmosphere without being covered by ice. Ben Huff, Smithsonian Magazine, 4 Apr. 2023 Aluminum-26 and beryllium-10 are two examples of cosmogenic nuclides, both found in the mineral quartz. Ashley Strickland, CNN, 28 June 2022 The cosmogenic neutrinos the team hopes to capture are thought to emanate from violent cosmic engines. Daniel Clery, Science | AAAS, 14 July 2021 Typical cosmogenic tritium concentrations in seawater are about 700 Bq/m3 (19 pCi/L), greater than what is in most of these Fukushima tanks. James Conca, Forbes, 12 Apr. 2021 Carbon-14, the isotope that archeologists use in radioactive dating, is cosmogenic—continuously created in Earth’s uppermost atmosphere by cosmic-ray collisions. Adam Davidson, The New Yorker, 13 Feb. 2017

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

Word History


cosmic ray + -o- + -genic

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of cosmogenic was in 1962

Dictionary Entries Near cosmogenic

Cite this Entry

“Cosmogenic.” Dictionary, Merriam-Webster, Accessed 2 Mar. 2024.

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