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Definition of: ganglion
(gang′glē·ən) noun plural ·gli·ons or ·gli·a (glē·ə) Physiol.
1. A collection of nerve cells, acting as a center of nervous influence.
2. Any center of energy, activity, or strength.
3. Pathol. A hard globular tumor proceeding from a tendon. [<LL <Gk. ganglion tumor]
—gan·gli·on·ic (gang′glē·on′ik) adjective
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