non·​fis·​sion·​able ˌnän-ˈfi-shə-nə-bəl How to pronounce nonfissionable (audio)
: not capable of undergoing fission : not fissionable
nonfissionable uranium

Word History

First Known Use

1946, in the meaning defined above

Time Traveler
The first known use of nonfissionable was in 1946

Dictionary Entries Near nonfissionable

Cite this Entry

“Nonfissionable.” Dictionary, Merriam-Webster, Accessed 23 Apr. 2024.

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