auricle

[ awr-i-kuh l ]
/ ˈɔr ɪ kəl /
|

noun

Anatomy.
  1. the projecting outer portion of the ear; pinna.
  2. Also called auricular appendage. an ear-shaped appendage projecting from each atrium of the heart.
  3. (loosely) the atrium.
Botany, Zoology. a part like or likened to an ear.

Origin of auricle

First recorded in 1645–55, auricle is from the Latin word auricula the (external) ear, ear lobe. See auri-2, -cle1
Related formsau·ri·cled, adjective
Can be confusedauricle oracle
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for auricle

British Dictionary definitions for auricle

auricle

/ (ˈɔːrɪkəl) /

noun

  1. the upper chamber of the heart; atrium
  2. a small sac in the atrium of the heart
Also called: pinna anatomy the external part of the ear
Also called: auricula biology an ear-shaped part or appendage, such as that occurring at the join of the leaf blade and the leaf sheath in some grasses

Derived Formsauricled, adjective

Word Origin for auricle

C17: from Latin auricula the external ear, from auris ear
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medicine definitions for auricle

auricle

[ ôrĭ-kəl ]

n.

Atrial auricle.
The projecting shell-like structure on the side of the head constituting, with the external acoustic meatus, the external ear.pinna

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for auricle

auricle

[ ôrĭ-kəl ]

The visible part of the outer ear.
An atrium of the heart.

The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.