land mine(redirected from Demo trap)
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land mine:see minemine,
in warfare, term formerly applied to a system of tunnels dug under an army fortification and ending in a chamber where either explosives were placed to be detonated at the chosen moment or the supports were burned, causing the mine and the wall above it to collapse.
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land mine[′lan ‚mīn]
A container filled with high explosives or chemicals, placed on the ground or lightly covered, and fitted with a fuse or a firing device or both.