Metalochromy or Metallochromy: How To spell?
The word Metalochromy is misspelled against Metallochromy, a noun meaning "The art or process of coloring metals."
Metallochromy has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings meta & ochromy which should not be misspelled with single 'L'
Wrong Spelling:  meta-l-ochromy  Correct Spelling:  meta-ll-ochromy 
Find more incorrect spellings of Metallochromy to spell right way.