trapezium
🇺🇸
/trəˈpiːziəm/
🇬🇧
/trəˈpiːziəm/
A four-sided shape with one pair of parallel sides and one pair of non-parallel sides.
The garden had a large trapezium-shaped lawn.
A four-sided shape with no sides parallel.
The table was designed with a trapezium base for stability.