twistedquadrilateral

noun
UK /ˈtwɪstɪdˌkwɒdrɪˈlætərəl/
US /ˈtwɪstɪdˌkwɑːdrɪˈlætərəl/

A twisted quadrilateral is a four-sided shape whose sides cross over each other.

The teacher drew a twisted quadrilateral on the board to show how the lines can cross.


OTHER MEANINGS

2. A four-sided figure in which two sides intersect, forming a bow-tie or crossed pattern.

A bow-tie quadrilateral is a common example of a twisted quadrilateral.

3. A shape with four corners where the edges overlap instead of forming a simple loop.

Unlike a square, a twisted quadrilateral has edges that overlap.

4. In geometry, a quadrilateral that is not simple because its boundary crosses itself.

Mathematicians call a self-crossing four-sided shape a twisted quadrilateral.