English word dodecagon comes from English -gon, English dodeca- (Twelve.)
Dictionary entry | Language | Definition |
---|---|---|
-gon | English (en) | (geometry) Forms the names of plane figures containing a given number of angles, and thus bounded by that number of line segments (polygons). If the number is large enough, it can be attached directly to an English numeral with a hyphen. |
dodeca- | English (en) | Twelve. |
dodecagon | English (en) | (geometry) A polygon with twelve edges and twelve angles. |