The actual line of movement of an aircraft or a rocket over the surface of the earth; it is the projection of the history of the flight path on the surface. Also known as flight track.

The recording path on a rotating surface.

As applied to a pattern of setting diamonds in a bit crown, an arrangement of diamonds in concentric circular rows in the bit crown, with the diamonds in a specific row following in the track cut by a preceding diamond.

1. A path for recording one channel of information on a magnetic tape, drum, or other magnetic recording medium; the location of the track is determined by the recording equipment rather than by the medium.

2. The trace of a moving target on a plan-position-indicator radar screen or an equivalent plot.

1. The groove cut in a rock by a diamond inset in the crown of a bit.

2. A pair of parallel metal rails for a railway, railroad, tramway, or for any wheeled vehicle.

1. The slide or rack on which a diamond-drill swivel head can be moved to positions above and clear of the collar of a borehole.

2. A crawler mechanism for earth-moving equipment. Also known as crawler track.

1. To follow the movements of an object by keeping the reticle of an optical system or a radar beam on the object, by plotting its bearing and distance at frequent intervals, or by a combination of the two.

2. To navigate by following the movements of a craft without regard for future positions; this is used when frequent changes of an unanticipated amount are expected in course or speed or both.

3. A recommended route on a nautical chart, such as a North Atlantic Track.

1. The visible path of an ionizing particle in a particle detector, such as a cloud chamber, bubble chamber, spark chamber, or nuclear photographic emulsion.

2. See <<race track>>