trapezium

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English[edit]

Etymology[edit]

Recorded since 1570, learned borrowing from Late Latin trapezium, from Ancient Greek τραπέζιον (trapézion, irregular quadrilateral, literally a little table), diminutive of τράπεζα (trápeza, table). Doublet of trapeze.

Pronunciation[edit]

  • IPA(key): /tɹəˈpiː.zi.əm/
  • (file)

Noun[edit]

trapezium (plural trapeziums or trapezia)

  1. (geometry, Britain, Australia, New Zealand) A quadrilateral with two sides parallel.
    Hyponym: parallelogram
    1. (restrictively) A quadrilateral with two sides parallel and two sides non-parallel.
  2. (geometry, US, dated) A four-sided polygon with no parallel sides and no sides equal; a simple convex irregular quadrilateral.
  3. (anatomy) The trapezium bone of the wrist.
  4. A region on the ventral side of the brain, either just back of the pons Varolii, or, as in man, covered by the posterior extension of its transverse fibers.

Usage notes[edit]

  • (geometry): The terms trapezium and trapezoid have swapped meanings in the US and Canada as compared with the rest of the world.

Synonyms[edit]

Derived terms[edit]

Related terms[edit]

Translations[edit]

Dutch[edit]

Dutch Wikipedia has an article on:
Wikipedia nl

Etymology[edit]

Borrowed from Late Latin trapezium, from Ancient Greek τραπέζιον (trapézion, irregular quadrilateral), diminutive of τράπεζα (trápeza, table).

Pronunciation[edit]

Noun[edit]

trapezium n (plural trapeziums or trapezia, diminutive trapeziumpje n)

  1. (geometry) A trapezium, trapezoid, a quadrilateral with two sides parallel

Related terms[edit]

Latin[edit]

Etymology[edit]

Late Latin; from Ancient Greek τραπέζιον (trapézion, irregular quadrilateral, literally a little table), diminutive of τράπεζα (trápeza, table).

Pronunciation[edit]

Noun[edit]

trapezium n (genitive trapeziī or trapezī); second declension

  1. trapezium, trapezoid (four-sided shape with no sides parallel and no equal sides)

Declension[edit]

Second-declension noun (neuter).

Case Singular Plural
Nominative trapezium trapezia
Genitive trapeziī
trapezī1
trapeziōrum
Dative trapeziō trapeziīs
Accusative trapezium trapezia
Ablative trapeziō trapeziīs
Vocative trapezium trapezia

1Found in older Latin (until the Augustan Age).

Descendants[edit]