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Webster 1913 Edition

Trapezoid

Trap′e-zoid

,
Noun.
[Gr. [GREEK] trapezoid-shaped; [GREEK] table + [GREEK] shape, likeness: cf. F.
trapézoïde
. See
Trapezium
.]
1.
(Geom.)
A plane four-sided figure, having two sides parallel to each other.
2.
(Anat.)
A bone of the carpus at the base of the second metacarpal, or index finger.

Trap′e-zoid

,
Adj.
1.
Having the form of a trapezoid; trapezoidal;
as, the
trapezoid
ligament which connects the coracoid process and the clavicle
.
2.
(Anat.)
Of or pertaining to the trapezoid ligament;
as, the
trapezoid
line
.

Webster 1828 Edition

Trapezoid

TRAPEZOID'

,
Noun.
[L. trapezium.] An irregular solid figure having four sides, no two of which are parallel to each other; also, a plane four sided figure having two of the opposite sides parallel to each other.

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