Difusiveness or Diffusiveness: How To spell?
The word Difusiveness is misspelled against Diffusiveness, a noun meaning "The quality or state of being diffusive or diffuse; extensiveness; expansion; dispersion. Especially of style: Diffuseness; want of conciseness; prolixity."
Diffusiveness has double "ff" is mispronounced as "f"Remember double 'FF' in between the strings Di & usiveness which should not be misspelled with single 'F'
Wrong Spelling:  Di-f-usiveness  Correct Spelling:  Di-ff-usiveness 
Check more misspelled words of Diffusiveness to spell it correct.