auricleouter portion of the ear; a part resembling an earNot to be confused with:oracle ? one who is wise, authoritative, or highly regarded; a divine revelationAbused, Confused, & Misused Words by Mary Embree Copyright © 2007, 2013 by Mary Embreeau·ri·cle (ôr??-k?l)n.1. Anatomy a. The outer projecting portion of the ear. Also called pinna.b. See atrium.2. Biology An earlobe-shaped part, process, or appendage, especially at the base of an organ.[Middle English, auricle of the heart, from Old French, little ear, from Latin auricula, ear, earlier diminutive of auris, ear; see ous- in Indo-European roots.]au?ri·cled (-k?ld) adj.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.auricle (???r?k?l) n1. (Anatomy) a. the upper chamber of the heart; atriumb. a small sac in the atrium of the heart2. (Anatomy) anatomy Also called: pinna the external part of the ear3. (Biology) biology Also called: auricula an ear-shaped part or appendage, such as that occurring at the join of the leaf blade and the leaf sheath in some grasses[C17: from Latin auricula the external ear, from auris ear] ?auricled adjCollins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014au?ri?cle (??r ? k?l) n. 1. the outer ear; pinna. 2. (loosely) the atrium of the heart. 3. a part like or likened to an ear. [1645?55;