Meaning of TRAPEZIUM
| Pronunciation: | | tru'peezeeum
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 WordNet Dictionary |
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| | Definition: | |
- [n] the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals
- [n] a multiple star in the constellation of Orion
- [n] (in US) a quadrilateral with no parallel sides
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| | Synonyms: | | os trapezium, the Trapezium, trapezium bone |
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| | Antonyms: | | parallelogram | | |
| | See Also: | | carpal, carpal bone, multiple star, quadrangle, quadrilateral, tetragon, wrist bone | |
| Webster's 1913 Dictionary |
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| | Definition: | | \Tra*pe"zi*um\, n.; pl. E. {Trapeziums}, L.
{Trapezia}. [NL., fr. Gr. ? a little table, an irregular
four-sided figure, dim. of ? a table, for ?; ? (see {Tetra-})
+ ? foot, akin to ? foot; hence, originally, a table with
four feet. See {Foot}.]
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.
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