·noun An angular or ear-shaped lobe.
II. Auricle ·noun The external ear, or that part of the ear which is prominent from the head.
III. Auricle ·noun An instrument applied to the ears to give aid in hearing; a kind of ear trumpet.
IV. Auricle ·noun 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.