stadia¹ /stāˈdi-ə/ (surveying)

1. A graduated rod used in measuring distances at one observation, by the angle subtended by the distance between two hairs (stadia hairs or lines) in the telescope (also stadia rod)
2. The telescope so used (US)

• screw cap
• screw-capped
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• screw-down
• screwdriver
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• screwing machines
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