auricular appendix


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Noun1.auricular appendix - a pouch projecting from the top front of each atrium of the heartauricular appendix - a pouch projecting from the top front of each atrium of the heart
atrium cordis, atrium of the heart - the upper chamber of each half of the heart
pouch, pocket - (anatomy) saclike structure in any of various animals (as a marsupial or gopher or pelican)
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