preatomic

adjective
pre·​atom·​ic | \ ˌprē-ə-ˈtä-mik How to pronounce preatomic (audio) \

Definition of preatomic

: of or relating to a time before the use of the atomic bomb and atomic energy

First Known Use of preatomic

1914, in the meaning defined above

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The first known use of preatomic was in 1914

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Cite this Entry

“Preatomic.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/preatomic. Accessed 17 May. 2021.

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