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Gnomon   Listen
noun
Gnomon  n.  
1.
(Dialing) The style or pin, which by its shadow, shows the hour of the day. It is usually set parallel to the earth's axis.
2.
(Astron.) A style or column erected perpendicularly to the horizon, formerly used in astronomocal observations. Its principal use was to find the altitude of the sun by measuring the length of its shadow.
3.
(Geom.) The space included between the boundary lines of two similar parallelograms, the one within the other, with an angle in common; as, the gnomon bcdefg of the parallelograms ac and af. The parallelogram bf is the complement of the parallelogram df.
4.
The index of the hour circle of a globe.






Collaborative International Dictionary of English 0.48








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"Gnomon" Quotes from Famous Books



... ALBRECHT, a distinguished Biblical scholar and critic, born at Wuertemberg; best known by his "Gnomon Novi Testamenti," being an invaluable body of short notes on the New Testament; devoted himself to the critical study of the text of ...
— The Nuttall Encyclopaedia - Being a Concise and Comprehensive Dictionary of General Knowledge • Edited by Rev. James Wood

... hall they had established a gnomon.... This observatory, not worthy of much consideration for its ancient instruments, much less for its situation, its form, or its construction, is now enriched by several bronze instruments which ...
— The Travels of Marco Polo Volume 1 • Marco Polo and Rustichello of Pisa

... which it is useless to repeat. His addition to science, if he made any, was in treating the magnitudes and distances of the planets. He constructed geographical charts, and attempted to delineate the celestial sphere, and to measure time with a gnomon, or time-pillar, by the motion of its ...
— Beacon Lights of History, Volume III • John Lord

... large as a warming-pan, and a key like an anchor; then a little higher to the figured waistcoat of early British manufacture, and the sack-shapened coat, up to the narrow brim sugar-loaf hat on his head,—where can be found his equal? Nor does he want a nose as big as the gnomon of a dial-plate; and two flanks of impenetrable, deep, black brushwood, extending under either ear, and almost concealing the countenance, to complete the ...
— The Mirror of Literature, Amusement, and Instruction, Vol. 20, - Issue 560, August 4, 1832 • Various

... F.L.S. says, "We arrested several of these little aeronauts in their flight, and placed them on the brass gnomon of the sundial, and had the gratification to see them prepare for, and recommence, their aerial voyage. Having crawled about for a short time, to reconnoitre, they turned their abdomens from the current of air, and elevated ...
— The Mirror of Literature, Amusement, and Instruction - Volume 12, No. 339, Saturday, November 8, 1828. • Various


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