|1.||a quadrilateral having neither pair of sides parallel|
|2.||(US), (Canadian) Also called: trapezium a quadrilateral having two parallel sides of unequal length|
|3.||a small bone of the wrist near the base of the index finger|
|[C18: from New Latin trapezoidēs, from Late Greek trapezoeidēs trapezium-shaped, from trapeza table]|
trapezoid trap·e·zoid (trāp'ĭ-zoid')
A quadrilateral having two parallel sides.
A small bone in the wrist situated near the base of the index finger and articulating with the second metacarpal, trapezium, capitate, and scaphoid bones.
|trapezoid (trāp'ĭ-zoid') Pronunciation Key
A four-sided plane figure having two parallel sides.
A four-sided polygon in which two sides are parallel and two are not.