Comissural or Commissural: How To spell?
The word Comissural is misspelled against Commissural, an adjective meaning "pertaining to a commissure."
Commissural has double "mm" is mispronounced as "m"Remember double 'MM' in between the strings co & issural which should not be misspelled with single 'M'
Wrong Spelling:  co-m-issural  Correct Spelling:  co-mm-issural 
Check more misspelled words of Commissural to spell it correct.