1. A mass of nerve tissue containing nerve cell bodies, typically found outside the brain and spinal cord.
Usage: anatomy; neurology
2. A cyst or swelling that forms on a tendon or joint, especially in the wrist or hand.
Usage: medicine
3. A center of activity, energy, or power.
Usage: figurative

Examples

• The dorsal root ganglion contains sensory nerve cell bodies.
• She developed a ganglion cyst on her wrist from repetitive strain.
• The doctor drained the fluid from the ganglion with a needle.
• New York City is a ganglion of culture and commerce.
• Ganglia throughout the body relay signals to the central nervous system.
• The ganglion on her hand was painless but cosmetically bothersome.