Commisural or Commissural: How To spell?
The word Commisural is misspelled against Commissural, an adjective meaning "pertaining to a commissure."
Commissural has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings commi & ural which should not be misspelled with single 'S'
Wrong Spelling:  commi-s-ural  Correct Spelling:  commi-ss-ural 
Check more misspelled words of Commissural to spell it correct.