trapezoid

From Ancient Greek τραπέζιον (trapézion, “irregular quadrilateral”, literally “a little table”) + -oid (“resembling”).

• enPR: tră'pəzoid, IPA^(key): /ˈtɹæpəzɔɪd/

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trapezoid (plural trapezoids)

1. (geometry, US, Canada) A (convex) quadrilateral with two (non-adjacent) parallel sides.
   • 2023, Brandon Taylor, The Late Americans, Jonathan Cape, page 178:

     There was a trapezoid of light on his shoulder, some bright fragment torn from a greater plane.

2. (geometry, British, Australia, New Zealand) A convex quadrilateral with no sides parallel.
3. (anatomy) The trapezoid bone of the wrist.

• (geometry, convex quadrilateral with two non-adjacent parallel sides): (British) trapezium
• (geometry, convex quadrilateral with no parallel sides): irregular quadrilateral, (US) trapezium

(This etymology is missing or incomplete. Please add to it, or discuss it at the Etymology scriptorium.)

• IPA^(key): /tra.pɛˈzɔ.it/
• Rhymes: -ɔit
• Syllabification: tra‧pe‧zo‧id

trapezoid m inan (related adjective trapezoidalny)

1. (geometry) trapezium, trapezoid (quadrilateral with two sides parallel and two sides non-parallel)

• trapezoid in Polish dictionaries at PWN

Borrowed from French trapézoïde. By surface analysis, trapez +‎ -oid.

trapezoid n (plural trapezoide)

1. trapezoid

From New Latin trapezoides.

• IPA^(key): /trapezǒiːd/
• Hyphenation: tra‧pe‧zo‧id

trapezòīd m (Cyrillic spelling трапезо̀ӣд)

1. trapezium

• “trapezoid” in Hrvatski jezični portal