Othoescope or Otheoscope: How To spell?

The word Othoescope is misspelled against Otheoscope, a noun meaning "An instrument for exhibiting the repulsive action produced by light or heat in an exhausted vessel; a modification of the radoimeter."

Word contains consecutive vowels 'EO' in between alphabets oth & scope is misspelled as 'OE'
Wrong Spelling:  oth-oe-scope 
Correct Spelling:  oth-eo-scope 
Find more incorrect spellings of Otheoscope to spell right way.