From Longman Dictionary of Contemporary Englishtrapeziumtra‧pe‧zi‧um /trəˈpiːziəm/ noun [countable] technical 1 British EnglishCF a shape with four sides, only two of which are parallel2 American EnglishCF a shape with four sides, none of which are parallelOrigin trapezium (1500-1600) Modern Latin Greek trapezion “small table, trapezium”, from trapeza “table”, from tra- “four” + peza “foot”
