sciatic nerve


Definition of sciatic nerve 

: either of the pair of largest nerves in the body that arise one on each side from the nerve plexus supplying the posterior limb and pelvic region and that pass out of the pelvis and down the back of the thigh

Examples of sciatic nerve in a Sentence

Recent Examples on the Web

Your sciatic nerve branches from your lower back into your hip and leg on each side of your body, according to the Mayo Clinic. Nina Bahadur, SELF, "6 Things That Could Be Causing Your Lower Back Pain, Based on How It Feels," 28 Mar. 2018 Also, Papa is a font of information about the sciatic nerve! William Lee,, "'The Chi' recap Episode 9: In Tracy and Quentin, some dark histories show their faces," 12 Mar. 2018 The lawsuit alleges that the doctor injected too much fat into her gluteal muscles, which put pressure on her sciatic nerve. Joy Johnston, ajc, "Lawsuit: Woman claims Brazilian butt lift left her paralyzed," 18 Nov. 2017

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

See More

First Known Use of sciatic nerve

1726, in the meaning defined above

Keep scrolling for more

Learn More about sciatic nerve

Share sciatic nerve

Dictionary Entries near sciatic nerve


sciatic artery


sciatic nerve

sciatic vein



Statistics for sciatic nerve

Look-up Popularity

Time Traveler for sciatic nerve

The first known use of sciatic nerve was in 1726

See more words from the same year

Keep scrolling for more

More Definitions for sciatic nerve

sciatic nerve


English Language Learners Definition of sciatic nerve

medical : a nerve that goes from the lower back down the back of the leg

sciatic nerve


Medical Definition of sciatic nerve 

: either of the pair of largest nerves in the body that arise one on each side from the sacral plexus and that pass out of the pelvis through the greater sciatic foramen and down the back of the thigh to its lower third where division into the tibial and common peroneal nerves occurs

More from Merriam-Webster on sciatic nerve

See words that rhyme with sciatic nerve Encyclopedia article about sciatic nerve

Comments on sciatic nerve

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


to reject or criticize sharply

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!


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!