Serous or Serrous: How To spell?
The word Serous is misspelled against Serrous, an adjective meaning "Like the teeth off a saw; jagged."
Serrous has double "rr" is mispronounced as "r"Remember double 'RR' in between the strings se & ous which should not be misspelled with single 'R'
Wrong Spelling:  se-r-ous  Correct Spelling:  se-rr-ous 
Check more misspelled words of Serrous to spell it correct.