Calosum or Callosum: How To spell?
The word Calosum is misspelled against Callosum, a noun meaning "The great band commissural fibers which unites the two cerebral hemispheres. See corpus callosum, under Carpus."
Callosum has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings ca & osum which should not be misspelled with single 'L'
Wrong Spelling:  ca-l-osum  Correct Spelling:  ca-ll-osum 
Check more misspelled words of Callosum to spell it correct.