Corosion or Corrosion: How To spell?
The word Corosion is misspelled against Corrosion, meaning "Gradual decay by crumbling or surface disintegration."
Corrosion has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings co & osion which should not be misspelled with single 'R'
Wrong Spelling:  co-r-osion  Correct Spelling:  co-rr-osion 
Find more incorrect spellings of Corrosion to spell right way.