/ ˈtræpəzɔɪd; NAmE / noun ( geometry )
1.
( BrE ) ( NAmE tra·pez·ium ) a flat shape with four straight sides, none of which are parallel
2.
( NAmE ) = trapezium
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WORD ORIGIN
early 18th cent.: from modern Latin trapezoides , from late Greek trapezoeidēs , from trapeza table.