1. a small conical pouch projecting from the upper anterior part of each atrium of the heart; [syn: auricle, atrial auricle, auricula atrii]
WordNet (r) 3.0 (2006):
atrial auricle
n 1: a small conical pouch projecting from the upper anterior
part of each atrium of the heart [syn: auricle, atrial
auricle, auricula atrii]