Trapezoid vs. Trapezium

Trapezoidnoun

A (convex) quadrilateral with two (non-adjacent) parallel sides.

Trapezoidnoun

A convex quadrilateral with no sides parallel and no equal sides.

Trapezoidnoun

(anatomy) The trapezoid bone of the wrist.

Trapezoidnoun

A plane four-sided figure, having two sides parallel to each other.

Trapezoidnoun

A bone of the carpus at the base of the second metacarpal, or index finger.

Trapezoidadjective

Having the form of a trapezoid; trapezoidal; as, the trapezoid ligament which connects the coracoid process and the clavicle.

Trapezoidadjective

Of or pertaining to the trapezoid ligament; as, the trapezoid line.

Trapezoidnoun

a quadrilateral with two parallel sides

Trapezoidnoun

the wrist bone between the trapezium and the capitate bones

Trapezoid

In Euclidean geometry, a convex quadrilateral with at least one pair of parallel sides is referred to as a trapezium () in English outside North America, but as a trapezoid () in American and Canadian English. The parallel sides are called the bases of the trapezoid and the other two sides are called the legs or the lateral sides (if they are not parallel; otherwise there are two pairs of bases).

Trapeziumnoun

A four-sided polygon with two sides parallel

Trapeziumnoun

A four-sided polygon with no parallel sides and no sides equal; a simple convex irregular quadrilateral.

Trapeziumnoun

(anatomy) The trapezium bone of the wrist.

Trapeziumnoun

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.

Trapeziumnoun

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

Trapeziumnoun

A bone of the carpus at the base of the first metacarpal, or thumb.

Trapeziumnoun

a quadrilateral with no parallel sides

Trapeziumnoun

a multiple star in the constellation of Orion

Trapeziumnoun

the wrist bone on the thumb side of the hand that articulates with the 1st and 2nd metacarpals