[1] : The Collaborative International Dictionary of English v.0.48

pollex \pol"lex\, n.; pl. pollices. the thumb. anat.
   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.
   1913 webster
see also:
pollices 

[2] : WordNet (r) 2.0

pollex
     n : the thick short innermost digit of the forelimb syn: thumb
     also: pollices pl
see also:
thumb pollices 

Pollex >> P Words
Pollex, definition of term: Pollex
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