Difusible or Diffusible: How To spell?
The word Difusible is misspelled against Diffusible, meaning "Spreading rapidly through the system and acting quickly."
Diffusible has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Di & usible which should not be misspelled with single 'F'
Wrong Spelling:  Di-f-usible  Correct Spelling:  Di-ff-usible 
Check more misspelled words of Diffusible to spell it correct.