Alantoidal or Allantoidal: How To spell?
The word Alantoidal is misspelled against Allantoidal, an adjective meaning "pertaining to the allantois."
Allantoidal has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings a & antoidal which should not be misspelled with single 'L'
Wrong Spelling:  a-l-antoidal  Correct Spelling:  a-ll-antoidal 
Find more incorrect spellings of Allantoidal to spell right way.