Definition of "sciatic" [sci•at•ic]

• Of or relating to the ischium or to the region of the hipbone in which it is located. (adjective)
• Of or relating to sciatica. (adjective)

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.

• "That back of mine, he wrote John Morris in June 1953, continues to hurt and the third professor to examine him found that I had a displaced disk in my vertebrae which inflamed the so-called sciatic nerve and the pain was and is unbearable."
• "Thus a better indicator is something called the sciatic notch, which is in the stronger, posterior section of these large bones."
• "The other notches, one on either side, are formed by the sacrum and coccyx behind, the ischium in front, and the ilium above; they are called the sciatic notches; in the natural state they are converted into foramina by the sacrotuberous and sacrospinous ligaments."