nonreactor

noun

non·​re·​ac·​tor ˌnän-rē-ˈak-tər How to pronounce nonreactor (audio)
plural nonreactors
: someone or something that does not react to a stimulus
nonreactors in the placebo group

Word History

First Known Use

1903, in the meaning defined above

Time Traveler
The first known use of nonreactor was in 1903

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Cite this Entry

“Nonreactor.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/nonreactor. Accessed 10 Mar. 2025.

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