Zoid or Zooid: How To spell?
The word Zoid is misspelled against Zooid, a noun meaning "An animal in one of its inferior stages of development, as one of the intermediate forms in alternate generation."
Zooid has double "oo" is mispronounced as "o"Remember double 'OO' in between the strings z & id which should not be misspelled with single 'O'
Wrong Spelling:  z-o-id  Correct Spelling:  z-oo-id 
Find more incorrect spellings of Zooid to spell right way.