Water projected against the body in very fine sprays from many jets.
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 needle bath
Historical Examples of needle bath
The needle-bath is a skeleton-like structure having a large hollow backbone and branching ribs.The Turkish Bath
Robert Owen Allsop