polymetern.

Brit.

/pəˈlɪmᵻtə/,

/pɒˈlɪmᵻtə/, U.S.

/pəˈlɪmᵻdər/

Origin: Formed within English, by compounding. Etymons: poly- comb. form, -meter comb. form².

Etymology: < poly- comb. form + -meter comb. form². With sense (a) compare German Polymeter (1849 or earlier). In sense (b) after French polymètre (M. Couturier 1879). In sense (c) after German Polymeter (1892 or earlier; the instrument was developed by W. Lambrecht in 1890).

rare.

Any of various measuring devices; spec. †(a) an instrument for measuring angles (obsolete); †(b) an apparatus for measuring the distance between railway rails and detecting any difference in elevation between them (obsolete); (c) a form of hygrometer incorporating a thermometer and tables so that dew points, vapour pressures, etc., can be calculated for particular values of atmospheric temperature and humidity.

ΚΠ

1859 F. R. A. Glover (title) The polymeter, or Quintant: The practice of a new sector as used in trigonometry, surveying, fortification, gunnery, engineering, and astronomical observations.

a1877 E. H. Knight Pract. Dict. Mech. II. 1763/1 Polymeter, an instrument for measuring angles.

1879 Minutes Proc. Inst. Civil Engineers 56 312 To secure greater accuracy in both these operations M. Couturier has invented his polymeter.

1895 I. K. Funk et al. Standard Dict. Eng. Lang. II. Polymeter... 3. A special form of the hair-hygrometer, having an ordinary thermometer attached, and provided with scales and tables giving approximate values of vapour-pressures, dew-point temperatures, etc., corresponding to different temperatures and humidities.

1926 Amer. Jrnl. Bot. 13 199 The relative humidity of the air in the immediate vicinity of the plants was determined by means of Lambrecht's polymeters.

This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022).

单词	polymeter
释义	polymetern. Brit. /pəˈlɪmᵻtə/, /pɒˈlɪmᵻtə/, U.S. /pəˈlɪmᵻdər/ Origin: Formed within English, by compounding. Etymons: poly- comb. form, -meter comb. form². Etymology: < poly- comb. form + -meter comb. form². With sense (a) compare German Polymeter (1849 or earlier). In sense (b) after French polymètre (M. Couturier 1879). In sense (c) after German Polymeter (1892 or earlier; the instrument was developed by W. Lambrecht in 1890). rare. Any of various measuring devices; spec. †(a) an instrument for measuring angles (obsolete); †(b) an apparatus for measuring the distance between railway rails and detecting any difference in elevation between them (obsolete); (c) a form of hygrometer incorporating a thermometer and tables so that dew points, vapour pressures, etc., can be calculated for particular values of atmospheric temperature and humidity. ΚΠ 1859 F. R. A. Glover (title) The polymeter, or Quintant: The practice of a new sector as used in trigonometry, surveying, fortification, gunnery, engineering, and astronomical observations. a1877 E. H. Knight Pract. Dict. Mech. II. 1763/1 Polymeter, an instrument for measuring angles. 1879 Minutes Proc. Inst. Civil Engineers 56 312 To secure greater accuracy in both these operations M. Couturier has invented his polymeter. 1895 I. K. Funk et al. Standard Dict. Eng. Lang. II. Polymeter... 3. A special form of the hair-hygrometer, having an ordinary thermometer attached, and provided with scales and tables giving approximate values of vapour-pressures, dew-point temperatures, etc., corresponding to different temperatures and humidities. 1926 Amer. Jrnl. Bot. 13 199 The relative humidity of the air in the immediate vicinity of the plants was determined by means of Lambrecht's polymeters. This entry has been updated (OED Third Edition, September 2006; most recently modified version published online March 2022). > see also also refers to : polymetrepolymetern. < n.1859 see also
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polymetern.

> see also