rhi·​zot·​o·​my | \ rī-ˈzä-tə-mē How to pronounce rhizotomy (audio) \
plural rhizotomies

Definition of rhizotomy

: the operation of cutting the anterior or posterior spinal nerve roots

Examples of rhizotomy in a Sentence

Recent Examples on the Web In May, her family traveled to Missouri where Maya underwent selective dorsal rhizotomy surgery with Dr. T.S. Park, one of the nation’s leading pediatric neurosurgeons and a pioneer of the surgery, according to the family's website. Deasia Paige, Detroit Free Press, "This Michigan girl, 4, with cerebral palsy just took her first steps," 6 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'rhizotomy.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of rhizotomy

1910, in the meaning defined above

History and Etymology for rhizotomy

International Scientific Vocabulary

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Time Traveler for rhizotomy

Time Traveler

The first known use of rhizotomy was in 1910

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Statistics for rhizotomy

Cite this Entry

“Rhizotomy.” The Merriam-Webster.com Dictionary, Merriam-Webster Inc., https://www.merriam-webster.com/dictionary/rhizotomy. Accessed 22 January 2020.

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More Definitions for rhizotomy


rhi·​zot·​o·​my | \ rī-ˈzät-ə-mē How to pronounce rhizotomy (audio) \
plural rhizotomies

Medical Definition of rhizotomy

: the operation of cutting the anterior or posterior spinal nerve roots

Comments on rhizotomy

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