Share this entry

dodecagon Line breaks: do¦deca|gon
Pronunciation: /dəʊˈdɛkəɡ(ə)n/

Definition of dodecagon in English:


A plane figure with twelve straight sides and angles.
Example sentences
  • Dissections can get quite elaborate: A seven-pointed star becomes two heptagons; a dodecagon turns into three identical squares; and so on.
  • If you have a 40 yard loop with a post every yard, it doesn't matter whether it's a circle, a square, or a dodecagon.
  • How many triangles does it take to make a dodecagon?



Pronunciation: /dəʊdɪˈkaɡ(ə)n(ə)l/
Example sentences
  • There are two imposing gatehouses and a central dodecagonal hall, with wings A to F radiating off from it.
  • It is the power which is surrounded by a dodecagonal pyramid or dodecahedron—a hint which should persuade astrologers to reconsider their "signs of the zodiac."


Late 17th century: from Greek dōdekagōnon, neuter (used as a noun) of dōdekagōnos 'twelve-angled'.

Words that rhyme with dodecagon

Dijon • demijohn • ancon

Definition of dodecagon in:

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.

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources