The word oidal is misspelled against Ooidal, an adjective meaning "Shaped like an egg."
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Ooidal has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings & idal which should not be misspelled with single 'O'
Wrong Spelling:  #NAME? 
Correct Spelling:  #NAME? 
Find more incorrect spellings of Ooidal to spell right way.