To save this word, you'll need to log in.
do·deca·gon | \ dō-ˈde-kə-ˌgän 
\
\Definition of dodecagon
: a polygon of 12 angles and 12 sides
Keep scrolling for more
Comments on dodecagon
What made you want to look up dodecagon? Please tell us where you read or heard it (including the quote, if possible).
Test Your Vocabulary
Great Scrabble Words—A Quiz
- Which of the following Q-without-U words means the number five in cards or dice?
Can you spell these 10 commonly misspelled words?
TAKE THE QUIZ
Test Your Knowledge - and learn some interesting things along the way.
TAKE THE QUIZLove words? Need even more definitions?
Merriam-Webster unabridgedWords at Play
Ask the Editors
Word Games
Share dodecagon
Time Traveler for dodecagon
The first known use of dodecagon was circa 1658
See more words from the same year