(automotive) A kind of automotive differential that provides increased traction by restricting each of the two wheels on an axle to the same rotational speed without regard to available traction or differences in resistance seen at each wheel.

plural of locked fault

plural of lock stitch

Alternative form of vapor lock

(mechanical engineering) A problem mostly affecting gasoline-fueled internal combustion engines, where the liquid fuel changes state from liquid to gas while still in the fuel delivery system, reducing the pump pressure and causing transient power loss or complete stalling.

plural of lock gate

(Usually) one of a pair of gates at each end of a lock chamber on a canal, or river with a weir.

(computing theory) The undesirable situation where multiple threads of equal priority contend repeatedly for the same lock.

plural of lock convoy

(automotive) A device that allows the front brakes to lock independently of the rear brakes via a switch.