nerve cord
Americannoun
-
a single hollow tract of nervous tissue that constitutes the central nervous system of chordates and develops into the spinal cord and brain in vertebrates.
-
a solid double strand of nerve fibers along the length of the body in elongate invertebrates, as earthworms and insects, connecting with a pair of nerve ganglia at each body segment.
Etymology
Origin of nerve cord
First recorded in 1875–80
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
They put them together into a 3D map of the brain and nerve cord and compared them to the earlier, female mapping.
From BBC ● Sep. 3, 2026
The finished connectome shows how each neuron connects with other neurons in the brain and nerve cord at the level of individual synapses.
From Science Daily ● Jun. 10, 2026
The new map of neural connections, known as a connectome, extends a previously published fruit fly brain connectome by adding the fly's spinal cord equivalent, called the nerve cord.
From Science Daily ● Jun. 10, 2026
The nervous system consists of cerebral ganglia in the head that connect to a ventral nerve cord.
From Textbooks ● Jan. 1, 2015
Neural groove: is that furrow in the primitive layer of the embryo in which the nerve cord is formed.
From Explanation of Terms Used in Entomology by John. B. Smith
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
