# trapezium

- Geometry.
- (in Euclidean geometry) any rectilinear quadrilateral plane figure not a parallelogram.
- a quadrilateral plane figure of which no two sides are parallel.
- British.trapezoid(def 1a).

- Anatomy. a bone in the wrist that articulates with the metacarpal bone of the thumb.

## Origin of trapezium

## Examples from the Web for trapezium

### Historical Examples of trapezium

Trapezium: a four-sided figure in which no two sides are parallel.

Explanation of Terms Used in EntomologyJohn. B. Smith

Well, it's much the same way with me since my stallion William died—of trapezium, I think the doctor said.

A Man in the OpenRoger Pocock

Their circuit may in everyday speech be called a square, though strict mathematical accuracy must pronounce it to be a trapezium.

Sketches of Travel in Normandy and MaineEdward A. Freeman

His court must therefore have been a trapezium with its smallest side opposite to the pylon, rather than a rectangle.

A history of art in ancient Egypt, Vol. I (of 2)Georges Perrot

To find the area of a trapezium: Divide it into two triangles and find the areas of the latter by the first rule.

Getting GoldJ. C. F. Johnson

## trapezium

- mainly British a quadrilateral having two parallel sides of unequal lengthUsual US and Canadian name: trapezoid
- mainly US and Canadian a quadrilateral having neither pair of sides parallel
- a small bone of the wrist near the base of the thumb

## Word Origin for trapezium

## Word Origin and History for trapezium

1560s, from Late Latin trapezium, from Greek trapezion "irregular quadrilateral," literally "a little table," diminutive of trapeza "table," from tra- "four" (see four) + peza "foot, edge," related to pous (see foot (n.)). Before 1540s, Latin editions of Euclid used the Arabic word helmariphe. As the name of a bone in the wrist, it is recorded from 1840.

## trapezium

(trə-pē′zē-əm)- A quadrilateral having no parallel sides.
- A bone in the wrist at the base of the thumb, articulating with the first and second metacarpal, scaphoid, and trapezoid bones.

## trapezium

- A four-sided plane figure having no parallel sides.