1. A fold of skin extending between the forelimbs and hind limbs of certain animals, such as flying squirrels and flying lizards, used for gliding through the air.
Usage: zoology; plural: patagia

Examples

• The flying squirrel uses its patagium to glide from tree to tree.
• The patagium of the flying lizard is supported by elongated ribs.
• When extended, the patagium acts like a parachute, slowing the animal's descent.
• Scientists study the patagium to understand how these animals achieve controlled flight.
• The patagium is stretched between the limbs and is covered with fur or scales depending on the species.