Postcommisure or Postcommissure: How To spell?
The word Postcommisure is misspelled against Postcommissure, a noun meaning "A transverse commisure in the posterior part of the roof of the third ventricle of the brain; the posterior cerebral commisure."
Postcommissure has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings postcommi & ure which should not be misspelled with single 'S'
Wrong Spelling:  postcommi-s-ure  Correct Spelling:  postcommi-ss-ure 
Check more misspelled words of Postcommissure to spell it correct.