The word Glosal is misspelled against Glossal, an adjective meaning "pertaining to the tongue; lingual."
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Glossal has double "ss" is mispronounced as "s"
Remember double 'SS' in between the strings glo & al which should not be misspelled with single 'S'
Wrong Spelling:  glo-s-al 
Correct Spelling:  glo-ss-al 
Find more incorrect spellings of Glossal to spell right way.