Outrageously Funny Word Dictionary :: Aculeatum

👉 Aculeatum is a type of hair on mammals, specifically birds, that is primarily used for grooming and protecting the head from parasites or predators. It consists of two separate hairs attached at the base, which are often referred to as "the two eyes," each with its own special function. These acules are also known as the "two ears" of a bird's body.

aculeatum