A device used on electrical and telecommunications systems to protect the insulation and conductors from the damaging effects of lightning. Typically, it has a high-voltage terminal and a ground terminal. When a surge travels along the power line to the arrester, the current from the surge is diverted through the arrester, in most cases to earth.

(climbing) Any of various mountaineering maneuvers in which a climber who has fallen and is sliding down a slope halts the slide without recourse to a rope or other belay system.

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

plural of arrester bed

Third-person singular simple present indicative form of de-arrest

plural of spark arrester

present participle of de-arrest

Alternative form of dearrest

Alternative form of spark arrestor

plural of arrestable offence