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Webster 1913 Edition


Auricle

Au′ri-cle

,
Noun.
[L.
auricula
, dim. of
auris
ear. See
Ear
.]
1.
(Anat.)
(a)
The external ear, or that part of the ear which is prominent from the head.
(b)
The chamber, or one of the two chambers, of the heart, by which the blood is received and transmitted to the ventricle or ventricles; – so called from its resemblance to the auricle or external ear of some quadrupeds. See
Heart
.
2.
(Zool.)
An angular or ear-shaped lobe.
3.
An instrument applied to the ears to give aid in hearing; a kind of ear trumpet.
Mansfield.

Webster 1828 Edition


Auricle

AU'RICLE

,
Noun.
[L. auricula,
dim.
from auris, the ear.]
1.
The external ear, or that part which is prominent from the heat.
2.
The auricles of the heart are two muscular bags, situated at the base, serving as diverticula for the blood, during the diastole. They resemble the auricle of the ear, and cover the ventricles of the heart, like caps. Their systole of the heart, and vice versa. They receive the blood from the veins, and communicate it to the ventricles.

Definition 2022


auricle

auricle

English

Noun

auricle (plural auricles)

  1. (anatomy) The outer ear or pinna.
  2. (anatomy) An ear-shaped appendage of the left or right atrium of the heart.
  3. (anatomy) An atrium, the smaller of the two types of chamber in the heart.
  4. (botany) Any appendage in the shape of an earlobe.

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