ETYM Latin auricula, dim. of auris ear. Related to Ear.
External ear; ear-shaped appendage; upper cavity of heart.
> (Homonym: oracle).
1. A small conical pouch projecting from the upper anterior part of each atrium of the heart; SYN. atrial auricle, auricula atrii.
2. The externally visible cartilaginous structure of the external ear; SYN. pinna, ear.