Of, relating to, or affecting the sacrum and ischium.
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
Examples from the Web for sacrosciatic
Historical Examples of sacrosciatic
The posterior part lies partly upon and partly in the texture of the sacrosciatic ligament.Lameness of the Horse
John Victor Lacroix