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prenuclear

[pree-noo-klee-er, -nyoo- or, by metathesis, -kyuh-ler]
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adjective
  1. of or relating to the era before the development of nuclear weapons.
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Origin of prenuclear

First recorded in 1950–55; pre- + nuclear

Pronunciation note

See nuclear.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018