- a mass of nerve tissue existing outside the central nervous system.
- any of certain masses of gray matter in the brain, as the basal ganglia.
- Pathology. a cyst or enlargement in connection with the sheath of a tendon, usually at the wrist.
- a center of intellectual or industrial force, activity, etc.
Origin of ganglion
1675–85; < Late Latin: a type of swelling < Greek gánglion a tumor under the skin, on or near a tendon
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018
Examples from the Web for ganglion
From the ganglion of the shoulders, also, the child breathes and his heart beats.Fantasia of the Unconscious
D. H. Lawrence
The nerves connected with this ganglion were long and slender.
It forms a continuation of the root rather than of the ganglion.
The junction is from the first at some little distance from the ganglion.
Fibers which leave the ganglion laterally from ventral cells.
- an encapsulated collection of nerve-cell bodies, usually located outside the brain and spinal cord
- any concentration of energy, activity, or strength
- a cystic tumour on a tendon sheath or joint capsule
C17: from Late Latin: swelling, from Greek: cystic tumour
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012
Word Origin and History for ganglion
1680s, from Greek ganglion "tumor," used by Galen for "nerve bundle." Of unknown origin; according to Galen, the proper sense of the word was "anything gathered into a ball."
Online Etymology Dictionary, © 2010 Douglas Harper
- A group of nerve cells forming a nerve center, especially one located outside the brain or spinal cord.neuroganglion
- A benign tumorlike cyst containing mucopolysaccharide-rich fluid enclosed within fibrous tissue and usually attached to a tendon sheath in the hand, wrist, or foot.myxoid cyst synovial cyst
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
- A compact group of neurons enclosed by connective tissue and having a specific function. In invertebrate animals, pairs of ganglia occur at intervals along the axis of the body, with the forwardmost pair functioning like a brain. In vertebrates, ganglia are usually located outside the brain or spinal cord, where they regulate the functioning of the body's organs and glands as part of the autonomic nervous system.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.