Word Study
tachymeter
CIDE DICTIONARY
tachymeter, n. [Tachy- + -meter.].
- An instrument, esp. a transit or theodolite with stadia wires, for determining quickly the distances, bearings, and elevations of distant objects. [Webster 1913 Suppl.]
- A speed indicator; a tachometer. [Webster 1913 Suppl.]
OXFORD DICTIONARY
tachymeter, n.
1 Surveying an instrument used to locate points rapidly.
2 a speed-indicator.
1 Surveying an instrument used to locate points rapidly.
2 a speed-indicator.
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