Definition of dodecagon in English:

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Pronunciation: /dəʊˈdɛkəɡ(ə)n/


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'.

For editors and proofreaders

Line breaks: do¦deca|gon

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