Meaning of petard

pe•tard

Pronunciation: (pi-tärd'), [key]
— n.
  1. an explosive device formerly used in warfare to blow in a door or gate, form a breach in a wall, etc.
  2. a kind of firecracker.
  3. (cap.) Also calleda British spigot mortar of World War II that fired a 40-pound (18 kg) finned bomb, designed to destroy pillboxes and other concrete obstacles.
  4. hurt, ruined, or destroyed by the very device or plot one had intended for another.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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