Share this entry

Share this page

octagon

Line breaks: octa|gon
Pronunciation: /ˈɒktəɡ(ə)n
 
/

Definition of octagon in English:

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 an octagonal plan or cross section.
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.

Origin

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

Derivatives

octagonal

1
Pronunciation: /-ˈtaɡ(ə)n(ə)l/
adjective
Example sentences
  • This beautiful 11-ft, octagonal gazebo looks great in any setting.
  • Their excavations unearthed a large octagonal fortress with 10-foot thick walls and eight towers.
  • And here she was in a suburban Minnesota pool, churning the humid air with those octagonal Slavic consonants.

Definition of octagon in:

Share this entry

Share this page

 

What do you find interesting about this word or phrase?

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

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day peart
Pronunciation: pɪət
adjective
lively; cheerful