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Trapezium   Listen
noun
Trapezium  n.  (pl. E. trapeziums, L. trapezia)  
1.
(Geom.) A plane figure bounded by four right lines, of which no two are parallel.
2.
(Anat.)
(a)
A bone of the carpus at the base of the first metacarpal, or thumb.
(b)
A region on the ventral side of the brain, either just back of the pons Varolii, or, as in man, covered by the posterior extension of its transverse fibers.






Collaborative International Dictionary of English 0.48








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"Trapezium" Quotes from Famous Books



... orders and insults, his eyes glazed, his face deeply congested; a bottle set between his knees, a glass in his hand half empty. His back was to the squall, and he was at first intent upon the setting of the sail. When that was done, and the great trapezium of canvas had begun to draw and to trail the lee-rail of the Farallone level with the foam, he laughed out an empty laugh, drained his glass, sprawled back among the lumber in the boat, and fetched out a ...
— The Ebb-Tide - A Trio And Quartette • Robert Louis Stevenson and Lloyd Osbourne

... himself. He proceeded to make a Newtonian of nine inches aperture, which he erected in an observatory at his residence near Liverpool, happily named "Starfield." With this instrument he worked diligently, and detected the sixth star in the trapezium of Orion. In 1844 he conceived the bold idea of constructing a reflector of two feet aperture, and twenty feet focal length, to be mounted equatorially. Sir John Herschel, in mentioning Mr. Lassell's work, did me ...
— James Nasmyth's Autobiography • James Nasmyth

... Skeleton of the hand or fore foot of six mammals. I man, II dog, III pig, IV ox, V tapir, VI horse. r radius, u ulna, a scaphoideum, b lunare, a triquetrum, d trapezium, e trapezoid, f capitatum, g hamatum, p pisiforme. 1 thumb, 2 index finger, 3 middle finger, 4 ring finger, 5 ...
— The Evolution of Man, V.2 • Ernst Haeckel

... in the hock, and of certain abnormal appearances between the tibia and astragalus, as quite common in Irish horses, and not due to disease. Horses have often been observed, according to M. Gaudry (2/8. 'Bulletin de la Soc. Geolog.' tome 22 1866 page 22.), to possess a trapezium and a rudiment of a fifth metacarpal bone, so that "one sees appearing by monstrosity, in the foot of the horse, structures which normally exist in the foot of the Hipparion,"—an allied and extinct animal. In various countries horn-like projections have been observed ...
— The Variation of Animals and Plants under Domestication - Volume I • Charles Darwin



Words linked to "Trapezium" :   U.S.A., quadrangle, tetragon, United States of America, quadrilateral, America, trapezium bone, USA, wrist bone, United States, the States, os trapezium, parallelogram, multiple star, carpal bone, carpal, US, U.S.



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