the world > the earth > earth sciences > geography > map-making > surveying > [adjective] > of instruments for surveying > relating to specific instruments
dioptricala1613
dioptric1625
pertical1625
tacheometric1900
tachymetric1900
1900 H. M. WilsonTopogr. Surveying xii. 236 There are practically two systems of tachymetric measurement: The angular or tangential system; and The stadia, telemeter, or subtend system.