The word Spermatozoid is misspelled against Spermatozooid, a noun meaning "A spermatozoid."
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Spermatozooid has double "oo" is mispronounced as "o"
Remember double 'OO' in between the strings spermatoz & id which should not be misspelled with single 'O'
Wrong Spelling:  spermatoz-o-id 
Correct Spelling:  spermatoz-oo-id 
Find more incorrect spellings of Spermatozooid to spell right way.