Medical Dictionary

rachidial ra·chid·i·al (rā-kĭd'ē-əl, rə-) or ra·chid·i·an (-ē-ən)
Relating to the vertebral column; spinal.

American Heritage
Medical Dictionary

rachis ra·chis (rā'kĭs)
n. pl. ra·chis·es or rach·i·des (rāk'ĭ-dēz', rā'kĭ-)
See spinal column.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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