# Polygon definition

A closed plane figure bounded by three or more line segments.

noun

A closed plane figure consisting of straight lines.

noun

The definition of a polygon is a geometric figure with straight sides and angles.

An example of a polygon is a octagon, a figure with eight sides.

An example of a polygon is a triangle, a figure with three sides.

noun

A closed plane figure having three or more sides. Triangles, rectangles, and octagons are all examples of polygons. &diamf3; A

**regular polygon**is a polygon all of whose sides are the same length and all of whose interior angles are the same measure.(geometry, more generally) A figure comprising vertices and (not necessarily straight) edges, alternatingly.

noun

(geometry) Such a figure and its interior, taken as a whole.

noun

## Other Word Forms

### Noun

Singular:

polygon
Plural:

polygons## Origin of polygon

- Late Latin
*polygōnum**from*Greek*polugōnon**from neuter of*Greek*polugōnos**polygonal**polu-**poly-**-gōnos**angled*–gon### From American Heritage Dictionary of the English Language, 5th Edition

- Ancient Greek
*πολύγωνον*(polygōnon), from*πολύς*(polus, “many") and*γωνία*(gōnia, “angle").### From Wiktionary