ganglion
noun /ˈɡæŋɡliən/
/ˈɡæŋɡliən/
(plural ganglia
(medical) /ˈɡæŋɡliə/
/ˈɡæŋɡliə/
)- a mass of nerve cells
- a swelling (= an area that is larger and rounder than normal) in a tendon, often at the back of the hand
Word Originlate 17th cent.: from Greek ganglion ‘tumour on or near sinews or tendons’, used by Galen to denote the complex nerve centres.