trapezium
Meanings
noun
- A quadrilateral with two sides parallel.
- A quadrilateral with two sides parallel and two sides non-parallel.
- A four-sided polygon with no parallel sides and no sides equal; a simple convex irregular quadrilateral.
- The trapezium bone of the wrist.
- 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.
Pronunciation
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Etymology
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.
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