(automotive) A performance measure for automobiles, that measures elapsed time. The time taken for an automobile that starts from a standing start, and accelerates to 60 miles per hour (roughly 100 km/h).

(automotive) A performance measure for automobiles, that measures elapsed distance. The automobile travelling at 60 mph (roughly 100 km/h) brakes to a stop, giving a stopping distance or braking distance, depending on measurement method.

A crater on Mars, located within the larger Airy Crater, used as the determining landmark for the Martian prime meridian.

Abbreviation of zero microgravity. / Abbreviation of zero gravity.

(computing) Alternative spelling of zero-day.

(computing) Alternative spelling of zero-day.

Under the Whyte notation system, a Garratt steam locomotive that is articulated in three parts, with a boiler mounted on the centre frame, and two steam engines mounted in opposite directions on separate frames, one on each end of the boiler, and each engine having a 2-8-0 wheel configuration.

Under the Whyte notation system, a Garratt steam locomotive that is articulated in three parts, with a boiler mounted on the centre frame, and two steam engines mounted in opposite directions on separate frames, one on each end of the boiler, and each engine having a 2-6-0 wheel configuration.

plural of 2-6-0+0-6-2

plural of 2-8-0+0-8-2