auricula

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auricle

 [aw´rĭ-k'l]
1. the projecting part of the ear lying outside the head; called also pinna.
Auricle.
2. the ear-shaped appendage of either atrium of the heart; formerly used to designate the entire atrium.

au·ri·cle

(aw'ri-kl), [TA] Avoid the outmoded use of this word in the sense of atrium.
The projecting shell-like structure on the side of the head, constituting, with the external acoustic meatus, the external ear. Synonym(s): auricula (1) [TA], pinna1 ☆ , ala auris

auricula

/au·ric·u·la/ (aw-rik´u-lah) pl. auri´culae   [L.] auricle.

au·ri·cle

(awr'i-kĕl) [TA]
1. The projecting shell-like structure on the side of the head, constituting, with the external acoustic meatus, the external ear.
Synonym(s): auricula (1) , pinna (1) .
2. Synonym(s): auricle of atrium.

au·ri·cle of a·tri·um

(awr'i-kĕl ā'trē-ŭm)
A small conic ("ear-shaped") pouch projecting from the upper anterior portion of each atrium of the heart, increasing slightly the atrial volume.
Synonym(s): auricula atrii, atrial auricle, auricle (2) , auricula (2) .

auricula

pl. auriculae [L.] auricle.