Ganglion n. : A mass or knot of nervous matter, including nerve cells, usually forming an enlargement in the course of a nerve.

Ganglion n. : A node, or gland in the lymphatic system; as, a lymphatic ganglion.

Ganglion n. : A globular, hard, indolent tumor, situated somewhere on a tendon, and commonly formed by the effusion of a viscid fluid into it; -- called also weeping sinew.

Example:
How much do a doctor charge to remove a Ganglion cyst?

Taxonomy
ganglia, ganglion, basal ganglia, free encyclopedia, ganglion cells, dorsal root ganglion, neurological, spinal ganglia, cell bodies, search, DRG, chicken embryo, stage, day 7, incubation, NGF, growth medium, neurofilament.

Defination from the web:
ganglion (DRG) from a chicken embryo (around stage of day 7) after incubation overnight in NGF growth medium stained with anti-neurofilament antibody. Note the axons growing out of the ganglion ... Autonomic ganglia contain the cell bodies of autonomic nerves. ...