(transport) A short, gravel filled, uphill exit ramp from a freeway or motorway designed to reduce the speed of an out of control vehicle.

(aviation, military) A system used to quickly decelerate a landing aircraft, essential for landing on an aircraft carrier (although land-based airfields can also be equipped with arresting gear); the most common system consists of a series of transverse wire ropes designed to snag an aircraft's tailhook, connected to a hydraulic or mechanical energy-absorbing system, but other systems exist (typically only for use in an emergency situation) which use a net to slow down an aircraft.

plural of arresting gear

(criminal law, Ireland, Hong Kong, Singapore, historical in UK) a criminal offence such that the offender may be arrested without warrant.

plural of arrestable offence

(anatomy, radiology) A line of increased bone density that represents the position of the growth plate at the time of insult to the organism and formed on long bones due to growth arrest.

plural of growth arrest line

Asked to authority, to ascertain if one is being arrested.