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camouflet

noun ca·mou·flet \ ¦kamə¦flā \

Definition of camouflet

plural -s
1 :a mine so charged and placed that its detonation will destroy enemy mining tunnels
2 a :an underground or subsurface explosion of a bomb or shell that leaves a sealed pocket of smoke and gas
b :a pocket formed in this way

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Origin and Etymology of camouflet

French, literally, smoke blown into a sleeper's face from lighted paper

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