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2 definitions found
 for Auricle
From The Collaborative International Dictionary of English v.0.48 :

  Auricle \Au"ri*cle\, n. [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.
            [1913 Webster]
  
     2. (Zool.) An angular or ear-shaped lobe.
        [1913 Webster]
  
     3. An instrument applied to the ears to give aid in hearing;
        a kind of ear trumpet. --Mansfield.
        [1913 Webster]

From WordNet (r) 3.0 (2006) :

  auricle
      n 1: a small conical pouch projecting from the upper anterior
           part of each atrium of the heart [syn: auricle, atrial
           auricle, auricula atrii]
      2: the externally visible cartilaginous structure of the
         external ear [syn: auricle, pinna, ear]

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