Mammilary or Mammillary: How To spell?
The word Mammilary is misspelled against Mammillary, an adjective meaning "Composed of convex convex concretions, somewhat resembling the breasts in form; studded with small mammiform protuberances."
Mammillary has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings mammi & ary which should not be misspelled with single 'L'
Wrong Spelling:  mammi-l-ary  Correct Spelling:  mammi-ll-ary 
Find more wrongly spelled words of Mammillary to spell it well.