French edit

 
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Etymology edit

From poudre +‎ Shimose. Calque of Japanese 下瀬火薬 (Shimose kayaku), from 下瀬 (Shimose, surname) + 火薬 (kayaku, gunpowder). Named after Japanese chemist 下瀬雅允 (Shimose Masachika) (1860–1911), the developer of the powder.

Noun edit

poudre Shimosa f (uncountable)

  1. Shimose powder; a picric acid based explosive