Definition of backblast

: the rush of powder gases from the open or vented breech of a recoilless weapon

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First Known Use of backblast

1923, in the meaning defined above

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The first known use of backblast was in 1923

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Cite this Entry

“Backblast.” The Dictionary, Merriam-Webster Inc., Accessed 27 January 2020.

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one that suddenly gains wealth or power

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