: produced by the action of cosmic rays
cosmogenic carbon 14

Examples of cosmogenic in a Sentence

Recent Examples on the Web
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Some 35 times more energetic than any neutrino seen before, the particle might have shot out from a highly active galaxy — a blazar — or a background source of cosmogenic high-energy particles that scientists suspect pervade the cosmos. — Quanta Magazine, 23 Jan. 2026 The production rate of cosmogenic deuterium at the Moon’s surface. — Keith Cooper, Space.com, 16 July 2025 The subglacial rock contained cosmogenic nucleotides that prove that Summit’s surface was exposed to the elements for an extended period. — Carly Miller, Forbes, 27 Sep. 2024 Dating the Tools The team used a dating method based on cosmogenic nuclides to determine the date of the tools from the Korolevo site. — Jack Knudson, Discover Magazine, 12 Mar. 2024 But the team determined the age of this layer, which contained the stone tools, using a technique called cosmogenic nuclide dating. — Will Sullivan, Smithsonian Magazine, 7 Mar. 2024

Word History

Etymology

cosmic ray + -o- + -genic

First Known Use

1962, in the meaning defined above

Time Traveler
The first known use of cosmogenic was in 1962

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Cite this Entry

“Cosmogenic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/cosmogenic. Accessed 9 Oct. 2026.

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