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



    BrE BrE//ˈɡæŋɡliən//
    ; NAmE NAmE//ˈɡæŋɡliən//
    (pl. ganglia
    BrE BrE//ˈɡæŋɡliə//
    ; NAmE NAmE//ˈɡæŋɡliə//
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  1. 1a mass of nerve cells
  2. 2a swelling in a tendon, often at the back of the hand
  3. Word Originlate 17th cent.: from Greek ganglion ‘tumour on or near sinews or tendons’, used by Galen to denote the complex nerve centres.
See the Oxford Advanced American Dictionary entry: ganglion