sub·​nu·​cle·​ar ˌsəb-ˈnü-klē-ər How to pronounce subnuclear (audio)
 nonstandard  -kyə-lər
: of, relating to, or being a particle smaller than the atomic nucleus

Word History

First Known Use

1937, in the meaning defined above

Time Traveler
The first known use of subnuclear was in 1937

Dictionary Entries Near subnuclear

Cite this Entry

“Subnuclear.” Dictionary, Merriam-Webster, Accessed 22 May. 2024.

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