Definition of octagon in English:

Share this entry

octagon

Pronunciation: /ˈäktəˌɡän/
Pronunciation: /ˈäktəˌɡən/

noun

1A plane figure with eight straight sides and eight angles.
Example sentences
  • You may know about a pentagon, a hexagon, or an octagon.
  • You'll find that the interior angle of a regular octagon is 135 degrees.
  • They considered a square, a rectangle, even an octagon.
1.1An object or building with a plan or cross section of this shape.
Example sentences
  • The house is formed of four octagons and no rectangular shapes or flat walls.
  • The octagon is formed by a kind of train-track motif that jogs around a flower-blossom design.
  • Only a handful of gunsmiths have the ability to cut a tapered octagon barrel.

Derivatives

octagonally

Pronunciation: /äkˈtaɡənəlē/
adverb

Origin

Late 16th century: via Latin from Greek octagōnos 'eight-angled'.

For editors and proofreaders

Syllabification: oc·ta·gon

Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.