From Longman Dictionary of Contemporary Englishtrapezoidtrap‧e‧zoid /ˈtræpəzɔɪd/ noun [countable] technical 1 CF British English a shape with four sides, none of which are parallel2 American EnglishCF a shape with four sides, only two of which are parallelOrigin trapezoid (1700-1800) Modern Latin trapezoïdes, from Greek, “trapezium-shaped”, from trapeza; → TRAPEZIUM
