ganglion.

1. A cluster of nerve cell bodies outside the brain and spinal cord in vertebrates, or a nervous center in some invertebrates.

2. A usually benign fluid-filled lump associated with a joint or tendon sheath.

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Words that belong together

• nerve ganglion
• sensory ganglion

On the page

A pale ganglion lay beside the branching nerve.

The specimen's ganglion controlled movements after the head was removed.

Usage notes

Primary category: horror. Forms: Singular ganglion; plural ganglia or ganglions. Legacy lexical fields mirror sense 1 only. Use numbered sense fields for all meanings.