1. pressure that is greater than normal or desired levels
Usage: technical
2. the pressure wave produced by an explosion that exceeds normal atmospheric pressure
Usage: military; engineering

Examples

• The overpressure in the boiler caused the safety valve to release.
• Engineers must account for overpressure when designing pressure vessels.
• The explosion created dangerous overpressure that shattered nearby windows.
• Overpressure from the blast knocked down several buildings.
• The system automatically vents when overpressure is detected.
• Military bunkers are built to withstand significant overpressure from bombs.