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单词 mesograph
释义

mesographn.

Forms: 1500s mesographes (plural), 1500s–1600s mesographus.
Origin: Of multiple origins. Partly a borrowing from French. Partly a borrowing from Latin. Etymons: French mesographe; Latin mesographus.
Etymology: Partly < Middle French mesographe (1559 in the passage translated in quot. 1579), and partly < post-classical Latin mesographus (1569 in the passage translated in quot. 1590), both < Hellenistic Greek μεσόγραϕον a mean proportional found using a mesolabe, use as noun of neuter of μεσόγραϕος < μεσο- meso- comb. form + -γραϕος -graph comb. form. The word μεσόγραϕος is not attested as the name of an instrument in Plutarch (compare quot. 1579), or elsewhere in Greek.
Obsolete.
= mesolabe n.
ΘΚΠ
the world > relative properties > number > mathematical instruments > [noun] > arithmetical instrument
mesograph1579
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1579 T. North tr. Plutarch Liues 338 Certeine instruments, called Mesolabes or Mesographes, which serue to finde these meane lines proportionall.
1590 T. Hood tr. P. de La Ramée Elem. Geom. xiii. f. 12v If a Mesographus, touching the angle opposite to the angle made of the lines geuen, do cut in equal distance from the centre, the 2 right lines geuen..the segments shalbe meane in continuall proportion with the line geuen.
1636 W. Bedwell tr. P. de la Ramée Via Regia ad Geometriam v. 78 Now for the rest, the construction; it was Plato's Mesographus; to wit, a squire with the opposits parallel.
This entry has been updated (OED Third Edition, September 2001; most recently modified version published online December 2020).
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n.1579
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