Auricle, auricula or auricula may refer to: Auricle (anatomy), the external portion of the ear Auricle, former name of the atrium of the heart; still used to describe this chamber in some other animals Auricle (botany), an ear-like projection on the base of a leaf or petal Auricles, ear-like projections at the base of the head of a planarium Primula auricula, or auricula, a species of flowering plant Auricula, a genus of extinct trilobites Auricle Ensemble, a Scottish chamber music group HMS Auricula, the name of two Royal Navy ships 1231 Auricula, an asteroid .