Ta*chym"e*ter (?), n. [Tachy- +
-meter.] 1. (Surveying) An
instrument, esp. a transit or theodolite with stadia wires, for
determining quickly the distances, bearings, and elevations of distant
objects.
2. A speed indicator; a tachometer.
Ta*chym"e*ter (?), n. [Tachy- +
-meter.] 1. (Surveying) An
instrument, esp. a transit or theodolite with stadia wires, for
determining quickly the distances, bearings, and elevations of distant
objects.
2. A speed indicator; a tachometer.