Pain along the sciatic nerve usually caused by a herniated disk of the lumbar region of the spine and radiating to the buttocks and to the back of the thigh. (noun)
American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
Use "sciatica" in a sentence
"Dean Moyer of the Back Pain Blog points out that the only food cure for sciatica is eating less of it."
"I love the indigenous rustic stuff, but my sciatica is screaming for at least one comfortable stuffed, upholstered chair to spend the evening in with my books and music."
"People didn't have LiveJournals to moan in back then, and even if they did the comments to all of your "My sciatica is acting up again" posts would be, "Well, I hope you can get to work on time or else you'll starve to death.""