Trapeziums

Part of speech: noun

Definitions

1. A type of quadrilateral with at least one pair of parallel sides, often used in geometry and design contexts; shapes defined by a pair of opposite sides being parallel, characterizing its edges as non-congruent; figures where the two parallel sides are commonly referred to as bases, while the remaining sides can vary in length and orientation
2. Geometric figures recognized by their unique property of having one pair of sides that run parallel, differentiating them from other quadrilaterals; shapes where two sides remain parallel, creating varying angles with the non-parallel sides; a specific classification within quadrilaterals driven by the relationship of the sides
3. A mathematical term for polygons that have one pair of opposite sides that are parallel, marking their distinctiveness among other shapes; quadrilaterals where at least one side pair maintains a consistent distance apart, influencing their overall structure; figures characterized by a combination of parallelism and angular diversity, contributing to their unique forms

Etymology: In Greek, "trapeza" meant "table," and "trapezion" meant "little table." The word combines roots meaning "four" and "foot," so it likely described a small four-legged table. Euclid used the Greek term for a quadrilateral with no parallel sides, and Latin borrowed it as "trapezium." The meaning has since split. In Britain, a trapezium is still a quadrilateral with no parallel sides. In America, that shape is called a trapezoid, and "trapezium" refers to a figure with one pair of parallel sides, which is the sense in your definition. "Trapeziums" is the regular English plural of "trapezium." The Latin-style plural "trapezia" is also used.

Synonyms: trapezoids