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Auricle (Noun)

A small conical pouch projecting from the upper anterior part of each atrium of the heart.

Nouns denoting body parts.

The doctor pointed out the small auricle on the right atrium during the echocardiogram.
In anatomy class, students learned to identify the auricle as a distinguishing feature of the atria.
During the surgery, the surgeon carefully repaired a damaged auricle on the left atrium.
Atria have small, conical pouches called auricles that can be seen during cardiac imaging tests.
In heart dissection labs, medical students examine the auricle's relationship to the rest of the atrial structure.