Gan"gli*on (?), n.; pl. L. Ganglia (#), E. Ganglions (#). [L. ganglion a sort of swelling or excrescence, a tumor under the skin, Gr. : cf. F. ganglion.]
1. Anat. (a)
A mass or knot of nervous matter, including nerve cells, usually forming an enlargement in the course of a nerve
A node, or gland in the lymphatic system; as, a lymphatic ganglion.
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.
Ganglion cell, a nerve cell. See Illust. under Bipolar.
© Webster 1913.