Stadia-hairs
noun
1.
a method of surveying in which distances are read by noting the interval on a graduated rod intercepted by two parallel cross hairs (stadia hairs or stadia wires) mounted in the telescope of a surveying instrument, the rod being placed at one end of the distance to be measured and the surveying instrument at the other.
adjective
2.
pertaining to such a method of surveying.
noun
1.
tacheometry that makes use of a telescopic surveying instrument and a graduated staff calibrated to correspond with the distance from the observer
(as modifier): stadia surveying
2.
the two parallel cross hairs or stadia hairs in the eyepiece of the instrument used
3.
the staff used
noun
1.
a plural of stadium
Read Also:
- Stadial
noun 1. stade. adjective 2. of or relating to a stade or stades.
- Stadia-rod
noun, Surveying. 1. rod (def 19). noun 1. a stick, wand, staff, or the like, of wood, metal, or other material. 2. a straight, slender shoot or stem of any woody plant, whether still growing or cut from the plant. 3. fishing rod. 4. (in plastering or mortaring) a straightedge moved along screeds to even […]
- Stadimeter
noun 1. an instrument for determining the distance between an observer and an object of known height by measurement of the angle subtended by the object.
- Stadiometer
noun 1. an instrument that measures the length of curves, dashes, etc, by running a toothed wheel along them
- Stadium
noun, plural stadiums, stadia [stey-dee-uh] /ˈsteɪ di ə/ (Show IPA) 1. a sports arena, usually oval or horseshoe-shaped, with tiers of seats for spectators. 2. an ancient Greek course for foot races, typically semicircular, with tiers of seats for spectators. 3. an ancient Greek and Roman unit of length, the Athenian unit being equal to […]