an instrument for recording the outlines of the spine and back.
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.
A graph for recording curves of the vertebrae.
[rachi- + G. graphō, to write]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012