TRAPEZIUM • FREE TRANSLATOR.ORG • Definition of Trapezium

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noun

Trapezium n. (pl. E. trapeziums, L. trapezia)

(Geom.) A plane figure bounded by four right lines, of which no two are parallel.

(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.

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Etymology of 'Trapezium'

Collaborative International Dictionary of English 0.48

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"Trapezium" Quotes from Famous Books

... forming a correct opinion, i.e., the real powers and merits of De Vico's great refractor at the Collegio Romano. De Vico's accounts of it appear to me to have not a little of the extra-marvellous in them. Saturn's two close satellites regularly observed—eight stars in the trapezium of Orion! [Greek: a] Aquilae (as Schumacher inquiringly writes to me) divided into three! the supernumerary divisions of Saturn's ring well seen, &c., &c. And all by a Cauchoix refractor of eight inches? I fear me that these wonders are not for female eyes, the good monks are too well ...

— Personal Recollections, from Early Life to Old Age, of Mary Somerville • Mary Somerville