Subteraneal or Subterraneal: How To spell?
The word Subteraneal is misspelled against Subterraneal, an adjective meaning "Subterranean."
Subterraneal has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings subte & aneal which should not be misspelled with single 'R'
Wrong Spelling:  subte-r-aneal  Correct Spelling:  subte-rr-aneal 
Check more misspelled words of Subterraneal to spell it correct.