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Webster 1913 Edition

Trapezium

Tra-pe′zi-um

,
Noun.
;
pl. E.
Trapeziums
(#)
, L.
Trapezia
(#)
.
[NL., fr. Gr. [GREEK] a little table, an irregular four-sided figure, dim. of [GREEK] a table, for [GREEK]; [GREEK] (see
Tetra-
) + [GREEK] foot, akin to [GREEK] 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.

Webster 1828 Edition

Trapezium

TRAPE'ZIUM

,
Noun.
plu.
trapezia or trapeziums. [L. from Gr. a little table.]
1.
In geometry, a plane figure contained under four unequal right lines, none of them parallel.
2.
In anatomy, a bone of the carpus.

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