auricular appendage

noun

auricle(def 1b).

auricle

[awr-i-kuh l]

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. 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
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

Word Origin and History for auricular-appendage

auricle

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.

auricular-appendage in Medicine

auricle

(ôr′ĭ-kəl)

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