noun, plural pa·ta·gi·a /-dʒi
ə/ Show Spelled [-jee-uh] Show IPA . 1.a wing membrane, as of a bat.
2.the extensible fold of skin of certain insects or of a gliding mammal or reptile, as a flying squirrel.
3.either of two small processes on the anterior thorax, found especially among butterflies and moths.
Origin:
1820–30; < Neo-Latin, special use of Latin patagium tunic border