tacho
(ˈtækəʊ)
colloq. abbrev. of tachometer. Cf. tach, tack n.8
| 1964 Motor 13 June 9/1 (heading) Japanese tachos. 1975 G. J. King Audio Handbk. viii. 195 Now, should the motor speed tend to decrease, owing to an increasing load for example, the tacho output also decreases. 1979 Truck & Bus Transportation May 26/1 On the open roads, the rear axle ratio of 4·33:1 made 100 km/h a comfortable cruising speed with a tacho reading of around the 2800 rpm mark. |