Sack-winged a. : Having a peculiar pouch developed near the front edge of the wing; -- said of certain bats of the genus Saccopteryx.

Example:


Taxonomy
Sack-Winged, pouch, edge, wing, genus, bats, Saccopteryx, Definitions, Quotes, Quote of the Day.

Defination from the web:
... Definition of Sack-Winged. Sack-winged. Having a peculiar pouch developed near the front edge of the wing; -- said of certain bats of the genus Saccopteryx. ...