n. hist. 1 a small bomb used to blast down a door etc. 2 a kind of firework or cracker. hoist with one's own petard affected oneself by one's schemes against others.
[ F pétard f. péter break wind ]
PETARD
Meaning of PETARD in English
Concise Oxford English dictionary. Краткий оксфордский словарь английского языка. 2012