Polex or Pollex: How To spell?
The word Polex is misspelled against Pollex, a noun meaning "The first, or preaxial, digit of the fore limb, corresponding to the hallux in the hind limb; the thumb. In birds, the pollex is the joint which bears the bastard wing."
Pollex has double "ll" is mispronounced as "l"Remember double 'LL' in between the strings po & ex which should not be misspelled with single 'L'
Wrong Spelling:  po-l-ex  Correct Spelling:  po-ll-ex 
Find more incorrect spellings of Pollex to spell right way.