- Quadrilateral means four-sided.
An example of something quadrilateral is a square.
- Quadrilateral is defined as a shape with four sides and four angles.
An example of a quadrilateral is a rectangle.
These are quadrilateral shapes.
Origin of quadrilateral; from Classical Latin quadrilaterus (see quadri- and amp; lateral) + -al
- Geom. a plane figure having four sides and four angles
- a four-sided area
- a polygon having four sides.
- having four sides.