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rhizotomy

[rahy-zot-uh-mee]
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noun, plural rhi·zot·o·mies. Surgery.
  1. the surgical section or cutting of the spinal nerve roots, usually posterior or sensory roots, to eliminate pain.
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Origin of rhizotomy

First recorded in 1910–15; rhizo- + -tomy
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

British Dictionary definitions for rhizotomy

rhizotomy

noun plural -mies
  1. surgical incision into the roots of spinal nerves, esp for the relief of pain
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Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

rhizotomy in Medicine

rhizotomy

(rī-zŏtə-mē)
n.
  1. Surgical severance of spinal nerve roots, as for the relief of pain.radicotomy radiculectomy
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.