patagium
pa.ta.gi.um \p*-'ta--je--*m, .pat-*-'ji--\ \-*\ n or pa.ta.gia [NL, fr. L, gold edging on a tunic] pl : a wing membrane : as : the fold of skin connecting the forelimbs and hind limbs of a flying sq uirrel or dragon lizard : the fold of skin in front of the main segments of a bird's wing