Definitions

1. noun

The upper or posterior margins of the wings of certain insects, especially butterflies and moths.

“The delicate alae of the monarch butterfly played a significant role in its aerodynamics.”

2. noun

The wings or wing-like appendages of a bird, especially when folded back against the body.

“The alae of the penguin were neatly tucked under its feathers as it waddled on the beach.”