tacheometern.

/takiːˈɒmɪtə/

Etymology: < French tachéomètre (Porro, 1855), < Greek ταχε- , oblique stem of ταχύς quick, swift, τάχος swiftness + -meter comb. form²: see also tachymeter n. Compare French tachéométrie.

A name given to instruments (of which there are various kinds) for the rapid location of points on a survey; = tachymeter n.

ΘΚΠ

the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveying instruments > for the rapid location of points on a survey

tachymeter1860

tacheometer1876

1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. 425 The Tacheometer of Gentilli... The means by which it measures the distance is an apparatus which obliges the lunette to traverse an unvarying angle.

1905 C. F. Close Text Bk. Topogr. & Geogr. Surv. v. 55 The term ‘tacheometer’ is best confined to instruments which have this optical arrangement [a converging lens between the object-glass and the diaphragm of a theodolite].

Derivatives

tacheoˈmetric adj. pertaining to a tacheometer or tacheometry.

ΘΚΠ

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 Nature 11 Oct. 571/2 Suggestions on possible methods of utilising existing transit theodolites for tacheometric work.

tacheˈometry n. surveying by means of a tacheometer.

ΘΚΠ

the world > the earth > earth sciences > geography > map-making > surveying > [noun] > specific methods or processes

dialling1670

traverse1674

boning1718

levelling1812

triangulation1818

resection1855

plane-tabling1867

stepping1888

tacheometry1888

tachymetry1891

trilateration1948

1888 B. H. Brough Mine-surv. 204 The aim of tacheometry is to survey and level simultaneously a tract of ground with the greatest possible accuracy in the least possible time.

1905 C. F. Close Text Bk. Topogr. & Geogr. Surv. v. 51 Tacheometry (called also in American books Tachymetry or Tachyometry) a system of ‘rapid measuring’..includes all the eight variations just mentioned. The system was first largely employed in Italy in 1820, but had been used in the eighteenth century in England.

This entry has not yet been fully updated (first published 1910; most recently modified version published online September 2018).

单词	tacheometer
释义	tacheometern. /takiːˈɒmɪtə/ Etymology: < French tachéomètre (Porro, 1855), < Greek ταχε- , oblique stem of ταχύς quick, swift, τάχος swiftness + -meter comb. form²: see also tachymeter n. Compare French tachéométrie. A name given to instruments (of which there are various kinds) for the rapid location of points on a survey; = tachymeter n. ΘΚΠ the world > the earth > earth sciences > geography > map-making > surveying > [noun] > surveying instruments > for the rapid location of points on a survey tachymeter1860 tacheometer1876 1876 Catal. Special Loan Coll. Sci. Apparatus S. Kensington Mus. 425 The Tacheometer of Gentilli... The means by which it measures the distance is an apparatus which obliges the lunette to traverse an unvarying angle. 1905 C. F. Close Text Bk. Topogr. & Geogr. Surv. v. 55 The term ‘tacheometer’ is best confined to instruments which have this optical arrangement [a converging lens between the object-glass and the diaphragm of a theodolite]. Derivatives tacheoˈmetric adj. pertaining to a tacheometer or tacheometry. ΘΚΠ 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 Nature 11 Oct. 571/2 Suggestions on possible methods of utilising existing transit theodolites for tacheometric work. tacheˈometry n. surveying by means of a tacheometer. ΘΚΠ the world > the earth > earth sciences > geography > map-making > surveying > [noun] > specific methods or processes dialling1670 traverse1674 boning1718 levelling1812 triangulation1818 resection1855 plane-tabling1867 stepping1888 tacheometry1888 tachymetry1891 trilateration1948 1888 B. H. Brough Mine-surv. 204 The aim of tacheometry is to survey and level simultaneously a tract of ground with the greatest possible accuracy in the least possible time. 1905 C. F. Close Text Bk. Topogr. & Geogr. Surv. v. 51 Tacheometry (called also in American books Tachymetry or Tachyometry) a system of ‘rapid measuring’..includes all the eight variations just mentioned. The system was first largely employed in Italy in 1820, but had been used in the eighteenth century in England. This entry has not yet been fully updated (first published 1910; most recently modified version published online September 2018). < n.1876
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