Definition of auricle in English:



Biology Anatomy
  • 1A structure resembling an ear or ear lobe.

    ‘grass leaves often have two auricles at the junction between the leaf sheath and the blade’
    • ‘The auricles are small, clearly separated from the anterior and posterior margins of the shell and are found in the plane of the closing of the valves.’
    • ‘The new species differs from it in being narrower and higher at a comparable growth stage and in having less oblique auricles.’
    1. 1.1 The external part or pinna of the ear.
      • ‘An indentation situated in front of the auricle of the ear.’
      • ‘Outside the cranial cavity, the auricle and the semispinalis capitis muscle are seen.’
      • ‘Within head injuries auricles were mainly bruised.’
      • ‘We have argued that local authorities should make it a requirement for those performing high ear piercing to warn their customers of the possibility of abscess formation and the resulting permanent deformity of the auricle.’
      • ‘Inflammation or infection of external auditory canal and auricle.’
      • ‘Radiographic examination revealed opacities consistent with bony structure in the auricles of the ears, with the right more prominent than the left.’
      • ‘The long term cosmetic problems arise from resultant destruction of cartilage that forms the skeleton of the auricle.’
      compartment, cavity, hollow, pocket, cell
      View synonyms
  • 2

    ‘blood passes downward from the auricle to the ventricle’
    another term for atrium (of the heart)
    • ‘This involves inserting a device within a catheter into the interior of the heart and which spreads out like an umbrella inside the right and left auricle.’
    • ‘The heart appears to be the most primitive of all adult vertebrates, with the auricle, ventricle and conus arteriosus arranged in straight line, rather than being doubled over one another.’
    1. 2.1 A small muscular flap on the surface of each atrium of the heart.
      • ‘It has a real beating heart with all its auricles, ventricles and valves in their anatomically correct positions.’


Late Middle English: from Latin auricula ‘external part of the ear’, diminutive of auris ‘ear’.