thenal

from WordNet (r) 3.0 (2006)

thenal
    adj 1: of or relating to the palm of the hand or to the area at
           the base of the thumb [syn: {thenal}, {thenar}]

from The Collaborative International Dictionary of English v.0.48

Thenal \The"nal\, Thenar \The"nar\, a. [NL., fr. Gr. ?.] (Anat.)
   Of or pertaining to the thenar; corresponding to thenar;
   palmar.
   [1913 Webster]