Anuloid or Annuloid: How To spell?
The word Anuloid is misspelled against Annuloid, an adjective meaning "pertaining to the Annuloida."
Annuloid has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings a & uloid which should not be misspelled with single 'N'
Wrong Spelling:  a-n-uloid  Correct Spelling:  a-nn-uloid 
Check more misspelled words of Annuloid to spell it correct.