Meaning of camouflet

ca•mou•flet

Pronunciation: (kam"u-flā', kam'u-flā"), [key]
— n.
  1. an underground explosion of a bomb or mine that does not break the surface, but leaves an enclosed cavity of gas and smoke.
  2. the pocket formed by such an explosion.
  3. the bomb or mine so exploded and causing such a pocket.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.