patagium /pat-ə-jīˈəm/

1. A bat's wing-membrane
2. The parachute of skin of a flying squirrel, etc
3. The fold of integument between the upper arm and the forearm of a bird
4. A paired scale on a moth's pronotum

• steepness
• steepnesses
• steeps
• steep-to
• steepup
• steepy
• steer
• steerable
• steerage
• steerages
• steerage way
• steerage ways
• steer clear of
• steered
• steerer
• steerers
• steeries
• steering
• steering column
• steering columns
• steering committee
• steering committees
• steering gear
• steering gears
• steerings