noun (plural -ziums or trapezia) see: four Date: 1570 1. a quadrilateral with no parallel sides, trapezoid 1b, a bone in the wrist at the base of the metacarpal of the thumb
TRAPEZIUM
Meaning of TRAPEZIUM in English
Merriam Webster. Explanatory English dictionary Merriam Webster. Толковый словарь английского языка Мерриам-Уэбстер. 2012