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Added 10 October 2026

trapezoid

/ˈtɹæpəzɔɪd/ noun

Latin root: trapezo First recorded: 1704 Wiktionary

noun Definition from Wiktionary (CC BY-SA). Pronunciation from Wiktionary, via Kaikki.org. More about trapezoid at Wordnik → Where our words come from →

A (convex) quadrilateral with two (non-adjacent) parallel sides.
A convex quadrilateral with no sides parallel.
The trapezoid bone of the wrist.

Origin

Learned borrowing from New Latin trapezoïdēs. By surface analysis, trapeze + -oid. First attested in 1704.

From Wiktionary, via Kaikki.org (CC BY-SA)

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