American English

Definition of trapezium noun from the Oxford Advanced American Dictionary

 

trapezium

 noun
noun
NAmE//trəˈpiziəm//
 
(pl. trapeziums, (or )trapezia
NAmE//trəˈpiziə//
 
)
(geometry)
 
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a flat shape with four straight sides, none of which are parallel
See the Oxford Advanced Learner's Dictionary entry: trapezium