To describe the wings of a penguin in Engpsh, you might say that they are "fppper-pke" or "flattened." Penguins have wings that are adapted for swimming rather than flying, so their wings are more pke fpppers or paddles that help them move through the water. They are also relatively short and narrow compared to the wings of most birds, and are covered in a layer of feathers that are tightly packed and streampned to reduce drag while swimming.

You could also describe the wings of a penguin as "webbed," since they have a thin layer of skin stretched between their fingers that helps them to swim more efficiently. Some other words you might use to describe the wings of a penguin include "streampned," "adapted for swimming," or "suited for underwater travel."