gravimetern.

/ɡrəˈvɪmɪtə/

Etymology: < French gravimètre (Guyton de Morveau, 1797; gravimétrie 1904), < Latin gravis heavy: see -meter comb. form². Compare French gravimétrique (1832).

Physics.

1. A kind of hydrometer (resembling Nicholson's), for determining the specific gravity of bodies, whether liquid or solid.

ΘΚΠ

the world > matter > constitution of matter > density or solidity > [noun] > specific gravity > device to measure specific gravity

gravimeter1797

1797 Jrnl. Nat. Philos. June 110 Description of a Gravi~meter, or Instrument for measuring the Specific Gravity of Solids and Fluids. By Citizen Guyton.

1801 J. Jones tr. T. Bugge Trav. French Republic v. 120 Determining the Specific gravity of a calcedon by means of Guiton's gravimeter.

1868 Nat. Encycl. I. 991 For fluids of greater specific gravity than water..an instrument..which was invented by Guyton de Morveau, and is designated ‘Gravimeter’, may be used.

2. Any instrument designed to measure the variation in the force of gravity from one place to another; usually applied to those which involve determining the force exerted on a suspended mass.

ΘΚΠ

the world > matter > physics > mechanics > force > gravity > [noun] > instrument for measuring variation

gravimeter1932

gravity meter1941

1932 Physics 2 124 (caption) Diagram of gravimeter.

1932 Physics 2 128 (caption) The gravimeter in the field.

1940 Geogr. Jrnl. 95 135 An exhaustive test of all modern gravimeters should be made..to compare the Lejay astatic pendulum, the new Nörgaard instrument, the gravimeters depending on the properties of helical springs..and finally the Nörgaard and Halck patterns of hydro~static gravimeter.

1955 Sci. Amer. Sept. 165/1 The pendulum is still the standard for absolute values of gravity, but nowadays the instrument most commonly used is the gravimeter, a supersensitive version of the ordinary spring scale. The earth's pull is measured by the amount of stretching of a thin wire of silica or invar (a nickel-steel alloy) on which a small weight hangs.

1957 Encycl. Brit. X. 677/1 The gravity meter or gravimeter is simply a spring balance comprising a constant mass supported by a spring system, the changes in elongation of which may be read with precision.

Derivatives

graviˈmetric adj.

ΘΚΠ

the world > matter > constitution of matter > density or solidity > [adjective] > relating to measurement of specific gravity

statical1727

gravimetric1873

gravimetrical1883

the world > matter > physics > mechanics > force > gravity > [adjective] > relating to measurement of gravity

ablatitious1715

gravimetric1873

1873 C. H. Ralfe Outl. Physiol. Chem. 216 Gravimetric [method], in which the substance after isolation from the mixture is weighed in the balance.

1884 Pharmaceut. Soc. Prosp. 13 Volumetric and Gravimetric Quantitative Analyses.

1935 Geogr. Jrnl. 85 199 Conditions of gravimetric survey.

1955 Sci. Amer. Sept. 170/3 The fundamental idea of the gravimetric method of mapping, and of the present world-wide gravity measuring program, is that the undulations of the geoid and its tilt at every place can be computed from the observed gravity anomalies.

graviˈmetrical adj. pertaining to the gravimeter or to gravimetry.

ΘΚΠ

the world > matter > constitution of matter > density or solidity > [adjective] > relating to measurement of specific gravity

statical1727

gravimetric1873

gravimetrical1883

1883 E. Atkinson tr. A. Ganot Elem. Treat. Physics (ed. 11) §185 This apparatus [volumometer or sterometer], is of great value in determining the gravimetrical density of gunpowder.

graviˈmetrically adv. by means of the gravimeter; in respect of measurement by weight.

ΚΠ

1866 W. Odling Lect. Animal Chem. 100 By comparing the items gravimetrically instead of volumetrically.

graˈvimetry n. measurement of weight.

ΘΚΠ

the world > matter > constitution of matter > density or solidity > [noun] > specific gravity > measurement of

gravimetry1858

1858 J. L. W. Thudichum Treat. Pathol. Urine 39 In the generality of diseases the gravimetry of urine gives very meagre results as yet.

This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2018).

单词	gravimeter
释义	gravimetern. /ɡrəˈvɪmɪtə/ Etymology: < French gravimètre (Guyton de Morveau, 1797; gravimétrie 1904), < Latin gravis heavy: see -meter comb. form². Compare French gravimétrique (1832). Physics. 1. A kind of hydrometer (resembling Nicholson's), for determining the specific gravity of bodies, whether liquid or solid. ΘΚΠ the world > matter > constitution of matter > density or solidity > [noun] > specific gravity > device to measure specific gravity gravimeter1797 1797 Jrnl. Nat. Philos. June 110 Description of a Gravi~meter, or Instrument for measuring the Specific Gravity of Solids and Fluids. By Citizen Guyton. 1801 J. Jones tr. T. Bugge Trav. French Republic v. 120 Determining the Specific gravity of a calcedon by means of Guiton's gravimeter. 1868 Nat. Encycl. I. 991 For fluids of greater specific gravity than water..an instrument..which was invented by Guyton de Morveau, and is designated ‘Gravimeter’, may be used. 2. Any instrument designed to measure the variation in the force of gravity from one place to another; usually applied to those which involve determining the force exerted on a suspended mass. ΘΚΠ the world > matter > physics > mechanics > force > gravity > [noun] > instrument for measuring variation gravimeter1932 gravity meter1941 1932 Physics 2 124 (caption) Diagram of gravimeter. 1932 Physics 2 128 (caption) The gravimeter in the field. 1940 Geogr. Jrnl. 95 135 An exhaustive test of all modern gravimeters should be made..to compare the Lejay astatic pendulum, the new Nörgaard instrument, the gravimeters depending on the properties of helical springs..and finally the Nörgaard and Halck patterns of hydro~static gravimeter. 1955 Sci. Amer. Sept. 165/1 The pendulum is still the standard for absolute values of gravity, but nowadays the instrument most commonly used is the gravimeter, a supersensitive version of the ordinary spring scale. The earth's pull is measured by the amount of stretching of a thin wire of silica or invar (a nickel-steel alloy) on which a small weight hangs. 1957 Encycl. Brit. X. 677/1 The gravity meter or gravimeter is simply a spring balance comprising a constant mass supported by a spring system, the changes in elongation of which may be read with precision. Derivatives graviˈmetric adj. ΘΚΠ the world > matter > constitution of matter > density or solidity > [adjective] > relating to measurement of specific gravity statical1727 gravimetric1873 gravimetrical1883 the world > matter > physics > mechanics > force > gravity > [adjective] > relating to measurement of gravity ablatitious1715 gravimetric1873 1873 C. H. Ralfe Outl. Physiol. Chem. 216 Gravimetric [method], in which the substance after isolation from the mixture is weighed in the balance. 1884 Pharmaceut. Soc. Prosp. 13 Volumetric and Gravimetric Quantitative Analyses. 1935 Geogr. Jrnl. 85 199 Conditions of gravimetric survey. 1955 Sci. Amer. Sept. 170/3 The fundamental idea of the gravimetric method of mapping, and of the present world-wide gravity measuring program, is that the undulations of the geoid and its tilt at every place can be computed from the observed gravity anomalies. graviˈmetrical adj. pertaining to the gravimeter or to gravimetry. ΘΚΠ the world > matter > constitution of matter > density or solidity > [adjective] > relating to measurement of specific gravity statical1727 gravimetric1873 gravimetrical1883 1883 E. Atkinson tr. A. Ganot Elem. Treat. Physics (ed. 11) §185 This apparatus [volumometer or sterometer], is of great value in determining the gravimetrical density of gunpowder. graviˈmetrically adv. by means of the gravimeter; in respect of measurement by weight. ΚΠ 1866 W. Odling Lect. Animal Chem. 100 By comparing the items gravimetrically instead of volumetrically. graˈvimetry n. measurement of weight. ΘΚΠ the world > matter > constitution of matter > density or solidity > [noun] > specific gravity > measurement of gravimetry1858 1858 J. L. W. Thudichum Treat. Pathol. Urine 39 In the generality of diseases the gravimetry of urine gives very meagre results as yet. This entry has not yet been fully updated (first published 1900; most recently modified version published online March 2018). < n.1797
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