trapezoid

English

Trapezoid (1) (US).

Trapezoid (2) (UK).

Etymology

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

Pronunciation

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

• Audio (AU)

  (file)

Noun

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.

Synonyms

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

Derived terms

• Ames trapezoid
• isosceles trapezoid
• right trapezoid
• trapezoidal
• trapezoid rule

 

Translations

quadrilateral with two sides parallel — see trapezium

quadrilateral with no sides parallel — see trapezium

trapezoid bone

• Catalan: trapezoide (ca) m
• Finnish: iso monikulmaluu (fi)
• Portuguese: trapezoide m
• Spanish: trapezoide (es) m

Polish

trapezoid

Etymology

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

Pronunciation

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

Noun

trapezoid m inan (related adjective trapezoidalny)

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

Declension

Declension of trapezoid

	singular	plural
nominative	trapezoid	trapezoidy
genitive	trapezoidu	trapezoidów
dative	trapezoidowi	trapezoidom
accusative	trapezoid	trapezoidy
instrumental	trapezoidem	trapezoidami
locative	trapezoidzie	trapezoidach
vocative	trapezoidzie	trapezoidy

Further reading

• trapezoid in Polish dictionaries at PWN

Romanian

Etymology

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

Noun

trapezoid n (plural trapezoide)

1. trapezoid

Declension

Declension of trapezoid

	singular		plural
	indefinite articulation	definite articulation	indefinite articulation	definite articulation
nominative/accusative	(un) trapezoid	trapezoidul	(niște) trapezoide	trapezoidele
genitive/dative	(unui) trapezoid	trapezoidului	(unor) trapezoide	trapezoidelor
vocative	trapezoidule		trapezoidelor

Serbo-Croatian

Etymology

From New Latin trapezoides.

Pronunciation

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

Noun

trapezòīd m (Cyrillic spelling трапезо̀ӣд)

1. trapezium

References

• “trapezoid” in Hrvatski jezični portal