cerebral ganglion

noun

: one of a pair of ganglia situated in the head or anterior part of the body in many invertebrates in front of or dorsal to the esophagus

also : a median ganglion formed by the fusion of such a pair

The Ultimate Dictionary Awaits

Expand your vocabulary and dive deeper into language with Merriam-Webster Unabridged.

1. Expanded definitions
2. Detailed etymologies
3. Advanced search tools
4. All ad-free

Discover what makes Merriam-Webster Unabridged the essential choice for true word lovers.

Start Your Free Trial Now