Penanular or Penannular: How To spell?
The word Penanular is misspelled against Penannular, an adjective meaning "Nearly annular; having nearly the form of a ring."
Penannular has double "nn" is mispronounced as "n"Remember double 'NN' in between the strings pena & ular which should not be misspelled with single 'N'
Wrong Spelling:  pena-n-ular  Correct Spelling:  pena-nn-ular 
Check more misspelled words of Penannular to spell it correct.