[pou-der-man, -muh n]
noun, plural pow·der·men [pou-der-men, -muh n] /ˈpaʊ dərˌmɛn, -mən/.
  1. a person in charge of explosives, especially in a demolition crew.
  2. Slang. a safe-cracker who uses explosives to open safes.

Origin of powderman

First recorded in 1660–70; powder1 + man1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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Historical Examples of powderman