trapezoid

Definition of Trapezoid in English :

1. trapezoid

a quadrilateral with two parallel sides

the wrist bone between the trapezium and the capitate bones

WordNet Lexical Database for English. Princeton University. 2010.

Trapezoid

noun

1.

a quadrilateral having neither pair of sides parallel

2. Also called: ()in Brit, Austral., NZ, and South African trapezium US and Canadian

a quadrilateral having two parallel sides of unequal length

3.

a small bone of the wrist near the base of the index finger

noun

1.

a plane figure with four sides, only two of which are parallel

2. British

trapezium (sense 1)

3. Anatomy

a small bone of the wrist near the base of the index finger

adjective

4.

shaped like a trapezoid

: also ˌtrapeˈzoidal

n.

1. Mathematics

a. A quadrilateral having two parallel sides.

b. Chiefly British A trapezium.

2. Anatomy A small bone in the wrist, situated near the base of the index finger.

3. Sports An area in the shape of a trapezoid marked behind the goal line and the goal in ice hockey, where the goalie is allowed to play the puck.