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dodeca-

  1. a combining form meaning “twelve,” used in the formation of compound words: dodecasyllabic.
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Also especially before a vowel, dodec-.

Origin of dodeca-

< Greek dōdeka-, combining form of dōdekás twelve, equivalent to dō- two + -dekas ten
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for dodec

dodeca-

n combining form
  1. indicating twelvedodecagon; dodecahedron; dodecaphonic
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Word Origin

from Greek dōdeka twelve
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012