petard /pe-tär or -tärdˈ/

1. A case containing an explosive, used for blowing in doors, etc (Shakespeare petarˈ)
2. A moving firework

hoist with one's own petard see under hoist

• metred
• metre-kilogram-second
• metre-kilogram-second-ampere
• metres
• -metric
• metric
• -metrical
• metrical
• -metrically
• metrically
• metricate
• metricated
• metricates
• metricating
• metrication
• metrications
• metri causa
• metric horsepower
• metric hundredweight
• metrician
• metricians
• metricise
• metricised
• metricises
• metricising