cos·​mo·​chem·​is·​try ˌkäz-mō-ˈke-mə-strē How to pronounce cosmochemistry (audio)
: a branch of chemistry that deals with the chemical composition of and changes in the universe
cosmochemical adjective
cosmochemist noun

Examples of cosmochemistry in a Sentence

Recent Examples on the Web Valdes’ area of focus is cosmochemistry. Jackie Wattles, CNN, 24 Jan. 2023 Tim Gregory has a Ph.D. in cosmochemistry from the University of Bristol, in the United Kingdom, and was formerly a research scientist at the British Geological Survey in Nottingham. Tim Gregory, Scientific American, 31 Oct. 2020 Some hope that turning to cosmochemistry, the study of the compositions of cosmic objects, might reveal the answer. Quanta Magazine, 3 Nov. 2021 Scientists like Alexander hope that combining new ideas of cosmochemistry with modeling of the early solar system could provide some useful answers. Quanta Magazine, 3 Nov. 2021

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

Word History


Greek kosmos universe

First Known Use

1940, in the meaning defined above

Time Traveler
The first known use of cosmochemistry was in 1940

Dictionary Entries Near cosmochemistry

Cite this Entry

“Cosmochemistry.” Dictionary, Merriam-Webster, Accessed 20 Jun. 2024.

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