Medulin or Medullin: How To spell?
The word Medulin is misspelled against Medullin, a noun meaning "A variety of lignin or cellulose found in the medulla, or pith, of certain plants. Cf. Lignin, and Cellulose."
Medullin has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings medu & in which should not be misspelled with single 'L'
Wrong Spelling:  medu-l-in  Correct Spelling:  medu-ll-in 
Check more misspelled words of Medullin to spell it correct.