Dodecasylabic or Dodecasyllabic: How To spell?
The word Dodecasylabic is misspelled against Dodecasyllabic, an adjective meaning "Having twelve syllables."
Dodecasyllabic has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings dodecasy & abic which should not be misspelled with single 'L'
Wrong Spelling:  dodecasy-l-abic  Correct Spelling:  dodecasy-ll-abic 
Find more incorrect spellings of Dodecasyllabic to spell right way.