eidographn.

/ˈʌɪdəɡrɑːf/

/ˈʌɪdəɡraf/

Etymology: < Greek εἶδος form + γράϕειν to sketch.

(See quot.)

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

1828 O. Gregory in Hutton's Course Math. (ed. 9) II. 81 Professor Wallace's eidograph may be advantageously employed.

1844 Mechanic's Mag. 40 92 The Eidograph, an instrument for making reduced copies of drawings, which he [sc. Prof. William Wallace] invented about the year 1821, and exhibited at a meeting of the Institution in 1839, is considered superior in many respects to the Pentograph.

1869 Eng. Mech. 3 Dec. 288/1 The eidograph is a correct instrument for enlarging or reducing drawings.

This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2019).

单词	eidograph
释义	eidographn. /ˈʌɪdəɡrɑːf//ˈʌɪdəɡraf/ Etymology: < Greek εἶδος form + γράϕειν to sketch. (See quot.) 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 1828 O. Gregory in Hutton's Course Math. (ed. 9) II. 81 Professor Wallace's eidograph may be advantageously employed. 1844 Mechanic's Mag. 40 92 The Eidograph, an instrument for making reduced copies of drawings, which he [sc. Prof. William Wallace] invented about the year 1821, and exhibited at a meeting of the Institution in 1839, is considered superior in many respects to the Pentograph. 1869 Eng. Mech. 3 Dec. 288/1 The eidograph is a correct instrument for enlarging or reducing drawings. This entry has not yet been fully updated (first published 1891; most recently modified version published online March 2019). < n.1828
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