Definition of trapezoids:
(n) :
(geometry, US, Canada) A (convex) quadrilateral with two (non-adjacent) parallel sides.
(n) :
(geometry, British, Australia, New Zealand) A convex quadrilateral with no sides parallel.
(n) :
(anatomy) The trapezoid bone of the wrist.
(n) :
(ice hockey) The marked trapezoidal area immediately behind the goal line and the goal itself within which the goaltender may touch the puck.