auricular appendage

auricle

[awr-i-kuh l]
noun
  1. 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.
  2. 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. 2018

British Dictionary definitions for auricular-appendage

auricle

noun
    1. the upper chamber of the heart; atrium
    2. a small sac in the atrium of the heart
  1. Also called: pinna anatomy the external part of the ear
  2. 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

Word Origin and History for auricular-appendage

auricle

n.

part of the ear, 1650s, from Latin auricula "ear," diminutive of auris (see ear (n.1)). As a chamber of the heart, early 15c., from Latin, so called from a perceived similarity in shape to an animal's ear.

Online Etymology Dictionary, © 2010 Douglas Harper

auricular-appendage in Medicine

auricle

[ôrĭ-kəl]
n.
  1. Atrial auricle.
  2. The projecting shell-like structure on the side of the head constituting, with the external acoustic meatus, the external ear.pinna

auricular appendage

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

auricular-appendage in Science

auricle

[ôrĭ-kəl]
  1. The visible part of the outer ear.
  2. An atrium of the heart.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.