--> Fibrillated has double "ll" is mispronounced as "l"
Remember double 'LL' in between the strings fibri & ated which should not be misspelled with single 'L'
Wrong Spelling:  fibri-l-ated 
Correct Spelling:  fibri-ll-ated 
Find more wrongly spelled words of Fibrillated to spell it well.