1. the action of striking or colliding with something
2. an encroachment or intrusion upon something
Usage: formal
3. a medical condition where tissues rub against or compress other structures
Usage: medical

Examples

• The impingement of the ball against the wall created a loud noise.
• Water droplet impingement on the aircraft wing can cause icing.
• The new law represents an impingement on personal freedoms.
• Shoulder impingement syndrome causes pain during overhead movements.
• The impingement of one gear against another caused the machine to jam.
• Citizens protested the government’s impingement on their privacy rights.