spinal cord

noun

: the cord of nervous tissue that extends from the brain lengthwise along the back in the spinal canal, gives off the pairs of spinal nerves, carries impulses to and from the brain, and serves as a center for initiating and coordinating many reflex acts see brain illustration

Examples of spinal cord in a Sentence

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Another gunshot wound just to the left of Vasquez’s belly button affected several internal organs and severed his spinal cord, Hossain said. Pj Green september 30, Kansas City Star, 30 Sep. 2025 In 2006, Bertier’s family started the Bertier #42 Foundation, which is dedicated to raising money for research on spinal cord injuries. Jessica Booth, PEOPLE, 29 Sep. 2025 According to the Cleveland Clinic, LMD is an incurable condition in which cancer cells spread from an advanced cancer to the cerebrospinal fluid and the membranes around the brain and spinal cord. Ashley Hume, FOXNews.com, 28 Sep. 2025 Dachshunds are among a number of breeds at risk of intervertebral disc disease (IVDD), which is a neurological condition affecting the spinal cord, vertebrae, or back bones. Alyce Collins, MSNBC Newsweek, 25 Sep. 2025 See All Example Sentences for spinal cord

Word History

First Known Use

1834, in the meaning defined above

Time Traveler
The first known use of spinal cord was in 1834

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Cite this Entry

“Spinal cord.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spinal%20cord. Accessed 4 Oct. 2025.

Kids Definition

spinal cord

noun
: the cord of nervous tissue that extends from the brain along the back in the cavity of the backbone, branches to form the spinal nerves, carries nerve impulses to and from the brain, and helps to control reflex actions

Medical Definition

spinal cord

noun
: the thick longitudinal cord of nervous tissue that in vertebrates extends along the back dorsal to the bodies of the vertebrae and is enclosed in the spinal canal formed by their neural arches, is continuous anteriorly with the medulla oblongata, gives off at intervals pairs of spinal nerves to the various parts of the trunk and limbs, serves not only as a pathway for nerve impulses to and from the brain but as a center for carrying out and coordinating many reflex actions independently of the brain, and is composed largely of white matter arranged in columns and tracts of longitudinal fibers about a large central core of gray matter somewhat H-shaped in cross section and pierced centrally by a small longitudinal canal continuous with the ventricles of the brain

called also medulla spinalis

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