Intromision or Intromission: How To spell?
The word Intromision is misspelled against Intromission, a noun meaning "An intermeddling with the affairs of another, either on legal grounds or without authority."
Intromission has double "ss" is mispronounced as "s"Remember double 'SS' in between the strings intromi & ion which should not be misspelled with single 'S'
Wrong Spelling:  intromi-s-ion  Correct Spelling:  intromi-ss-ion 
Find more incorrect spellings of Intromission to spell right way.