Stadia hairs
Stadia hairs Sta"di*a hairs or Stadia wires Sta"di*a wires (st[=a]"d[i^]*[.a] h[^a]rz). (Surv.) In a theodolite, etc., horizontal cross wires or hairs equidistant from the central horizontal cross wire. [Webster 1913 Suppl.]

The Collaborative International Dictionary of English. 2000.

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  • stadia hairs — noun plural or stadia wires : horizontal cross hairs (as in a theodolite) equidistant from the central horizontal cross hair …   Useful english dictionary

  • Stadia wires — Stadia hairs Sta di*a hairs or Stadia wires Sta di*a wires (st[=a] d[i^]*[.a] h[^a]rz). (Surv.) In a theodolite, etc., horizontal cross wires or hairs equidistant from the central horizontal cross wire. [Webster 1913 Suppl.] …   The Collaborative International Dictionary of English

  • Stadia mark — Stadia marks, also called stadia lines or stadia hairs, are crosshairs on the reticle of a theodolite or other surveying instrument that allow stadiametric rangefinding.EtymologyThe term stadia mark derives from the obsolete unit of distance, the …   Wikipedia

  • stadia — stadia1 [stā′dē ə] n. [It, prob. < L, pl. of stadium: see STADIUM] a method of surveying in which distances and elevations are obtained by observing the interval on a graduated, upright rod (stadia rod) intercepted by two parallel horizontal… …   English World dictionary

  • stadia rod — noun : a graduated rod used with an instrument having stadia hairs to measure the distance from the observation point to the place where the rod is positioned by observation of the length of rod subtended by the distance between the stadia hairs… …   Useful english dictionary

  • stadia — stadia1 /stay dee euh/, n. 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,… …   Universalium

  • stadia — I. /ˈsteɪdiə/ (say staydeeuh) noun 1. a method of surveying in which distances are read by noting the interval on a graduated rod (stadia rod) intercepted by two parallel crosshairs (stadia hairs or stadia wires) mounted in the telescope of a… …   Australian English dictionary

  • stadia — noun a) A level staff or levelling rod used by surveyors to measure differences in level, or to measure horizontal distances by sighting the stadia hairs. b) A graduated brass triangle used to measure the distance of a target by comparison of the …   Wiktionary

  • stadia wires — noun plural see stadia hairs …   Useful english dictionary

  • stadia — I sta•di•a [[t]ˈsteɪ di ə[/t]] n. pl. di•as 1) sur a surveying method of measuring distance through the telescope of a transit or alidade by reading the interval that the cross hairs intercept on a graduated rod held upright at the distant point… …   From formal English to slang

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