nerve cord


Definition of nerve cord

1 : the pair of closely united ventral longitudinal nerves with their segmental ganglia that is characteristic of many elongate invertebrates (such as earthworms)
2 : the dorsal tubular cord of nervous tissue above the notochord of a chordate that comprises or develops into the central nervous system

Examples of nerve cord in a Sentence

Recent Examples on the Web

Along this nerve cord are inhibitory neurons that act as gatekeepers, allowing pain signals through or blocking them based on context. Jason Daley, Smithsonian, "Study Finds Insects Can Experience Chronic Pain," 17 July 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'nerve cord.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of nerve cord

1877, in the meaning defined at sense 1

Keep scrolling for more

Learn More about nerve cord

Statistics for nerve cord

Look-up Popularity

Time Traveler for nerve cord

The first known use of nerve cord was in 1877

See more words from the same year

Keep scrolling for more

More Definitions for nerve cord

nerve cord


Medical Definition of nerve cord

: the dorsal tubular cord of nervous tissue above the notochord of a chordate that in vertebrates includes or develops an anterior enlargement comprising the brain and a more posterior part comprising the spinal cord with the two together making up the central nervous system

More from Merriam-Webster on nerve cord

Rhyming Dictionary: Words that rhyme with nerve cord

Comments on nerve cord

What made you want to look up nerve cord? Please tell us where you read or heard it (including the quote, if possible).


tired or exhausted

Get Word of the Day daily email!

Test Your Vocabulary

Where in the World? A Quiz

  • peter bruegel tower of babel painting
  • What language does pajama come from?
Spell It

Can you spell these 10 commonly misspelled words?

Bee Cubed

Test Your Knowledge - and learn some interesting things along the way.

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!