planigraphn.

Brit.

/ˈplanᵻɡrɑːf/,

/ˈplanᵻɡraf/, U.S.

/ˈplænəˌɡræf/

Origin: Formed within English, by compounding. Etymons: plani- comb. form, -graph comb. form.

Etymology: < plani- comb. form + -graph comb. form. In sense 2 after French planigraphe (1876).

†1. Mathematics. In a system of joined pivoted rods: a curve traced out by a point in a notional plane attached to one of the rods when the system is manipulated, having the property that no manipulation can bring it into contact with any of the rods. Obsolete. rare.

ΚΠ

1875 J. J. Sylvester in Nature 15 July 215/1 The curve described by a point in one plane upon any other plane has been termed by me..a Graph, and..[I] have proposed to call the describing point the Gram. We may..understand by canonigrams describing points taken in the lines connecting the joints and their corresponding curves, canonigraphs; Grams lying outside these lines and their appurtenant Graphs may be termed Epipedograms and Epipedographs; or, if these names are found too long for use, Planigrams and Planigraphs.

2. An instrument for enlarging or reducing drawings; spec. one consisting of a ruler marked with two different scales placed end to end (one having markings more widely spaced than the other), which is pivoted about the point where the scales meet, so that measurements of a drawing can be taken using one scale, and consistently enlarged or reduced using the other. Now rare.

ΘΚΠ

society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments > for enlarging or reducing

parallelogramc1656

pantograph1723

pantographer1750

reducing compass1778

tracer1812

eidograph1828

reducing machine1848

reduction compass1853

planigraph1877

tracing-instrument1877

1877 Sci. Amer. 26 May 328/3 An instrument for reducing or enlarging drawings, called a planigraph, has been invented by M. Marmet, of Versailles.

1919 Amer. Math. Monthly 26 198 Moreover we have Koenig's planigraph,..a linkage, by which a plane may be described in analogy with the description of a straight line by Peaucellier's inversor.

1938 Geogr. Jrnl. 92 434 It is understood that there are now more than one hundred Zeiss planigraphs in use throughout the world.

1953 Science 24 Apr. 458/1 The writer's original planigraph attachment..was designed to test the justification of this theory.

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

单词	planigraph
释义	planigraphn. Brit. /ˈplanᵻɡrɑːf/, /ˈplanᵻɡraf/, U.S. /ˈplænəˌɡræf/ Origin: Formed within English, by compounding. Etymons: plani- comb. form, -graph comb. form. Etymology: < plani- comb. form + -graph comb. form. In sense 2 after French planigraphe (1876). †1. Mathematics. In a system of joined pivoted rods: a curve traced out by a point in a notional plane attached to one of the rods when the system is manipulated, having the property that no manipulation can bring it into contact with any of the rods. Obsolete. rare. ΚΠ 1875 J. J. Sylvester in Nature 15 July 215/1 The curve described by a point in one plane upon any other plane has been termed by me..a Graph, and..[I] have proposed to call the describing point the Gram. We may..understand by canonigrams describing points taken in the lines connecting the joints and their corresponding curves, canonigraphs; Grams lying outside these lines and their appurtenant Graphs may be termed Epipedograms and Epipedographs; or, if these names are found too long for use, Planigrams and Planigraphs. 2. An instrument for enlarging or reducing drawings; spec. one consisting of a ruler marked with two different scales placed end to end (one having markings more widely spaced than the other), which is pivoted about the point where the scales meet, so that measurements of a drawing can be taken using one scale, and consistently enlarged or reduced using the other. Now rare. ΘΚΠ society > communication > representation > a plastic or graphic representation > graphic representation > drawing plans or diagrams > [noun] > drawing instruments > for enlarging or reducing parallelogramc1656 pantograph1723 pantographer1750 reducing compass1778 tracer1812 eidograph1828 reducing machine1848 reduction compass1853 planigraph1877 tracing-instrument1877 1877 Sci. Amer. 26 May 328/3 An instrument for reducing or enlarging drawings, called a planigraph, has been invented by M. Marmet, of Versailles. 1919 Amer. Math. Monthly 26 198 Moreover we have Koenig's planigraph,..a linkage, by which a plane may be described in analogy with the description of a straight line by Peaucellier's inversor. 1938 Geogr. Jrnl. 92 434 It is understood that there are now more than one hundred Zeiss planigraphs in use throughout the world. 1953 Science 24 Apr. 458/1 The writer's original planigraph attachment..was designed to test the justification of this theory. This entry has been updated (OED Third Edition, June 2006; most recently modified version published online March 2022). < n.1875
随便看	withycole withycragged withyfly withyherb withywind withywinds witie witieng witier witiing witinfusing witing witjar witless witlesslier witlessliest witlessly witlessness word sketch word sound word square word status word stem word store word stress