Pinna (anatomy)
In animal anatomy, the pinna (Latin for feather) is the visible part of the ear that resides outside of the head (this may also be referred to as the auricle or auricula).
In botany, it can refer to the segments of the leg a pinnate frond blade and is discussed in that section.
Read more about Pinna (anatomy): Function, Amplification, Pinna Notch, Anatomy, Embryology, Abnormalities