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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In fact, in a small 2023 study, published in the European Journal of Applied Physiology, adults with spinal cord injury who completed 12 weeks of upper-body ergometer rowing saw improvements in their cardio fitness. Christa Sgobba, SELF, 3 Jan. 2025 Similar to some forms of ALS in humans, DM is a spinal cord disease that can result in gradual paralysis in dogs, according to the American Kennel Club. Paul Du Quenoy, Newsweek, 1 Jan. 2025 Baltimore had just erupted in protests after Freddie Gray died after suffering injury to his neck and spinal cord while in the back of a police van. Debbie Elliott, NPR, 26 Nov. 2024 Here's why that is important: Consider a 6-year-old patient with a cancerous tumor next to their spinal cord or at the base of their skull. Jessica Van Egeren, Journal Sentinel, 10 Nov. 2024 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

Dictionary Entries Near spinal cord

Cite this Entry

“Spinal cord.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/spinal%20cord. Accessed 18 Jan. 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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