Definition of auricle noun from the Oxford Advanced Learner's Dictionary

     

    auricle

     noun
    noun
    BrE BrE//ˈɔːrɪkl//
     
    ; NAmE NAmE//ˈɔːrɪkl//
     
    (anatomy)
     
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  1. 1 either of the two upper spaces in the heart used to send blood around the body synonym atrium compare ventricle
  2. 2 the outer part of the ear
  3. Word Origin late Middle English: from Latin auricula ‘external part of the ear’, diminutive of auris ‘ear’.
See the Oxford Advanced American Dictionary entry: auricle