Mammiloid or Mammilloid: How To spell?
The word Mammiloid is misspelled against Mammilloid, an adjective meaning "Like a mammilla or nipple; mammilliform."
Mammilloid has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings mammi & oid which should not be misspelled with single 'L'
Wrong Spelling:  mammi-l-oid  Correct Spelling:  mammi-ll-oid 
Find more incorrect spellings of Mammilloid to spell right way.