lumpectomy

noun

lump·​ec·​to·​my ˌləm-ˈpek-tə-mē How to pronounce lumpectomy (audio)
plural lumpectomies
: excision of a breast tumor with a limited amount of associated tissue

Examples of lumpectomy in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Harris and her medical team decided on 16 rounds of chemotherapy, radiation, and a lumpectomy. Korin Miller, Flow Space, 27 Oct. 2025 Just a few days after her diagnosis, Crampton underwent a lumpectomy and had two lymph nodes removed, which required a six-week recovery. Vanessa Etienne, PEOPLE, 20 Oct. 2025 Bahl then went into treatment: having a lymph node biopsy, undergoing a lumpectomy, months of chemotherapy, and then doing 15 days of radiation. Margaux Anbouba, Vogue, 17 Oct. 2025 Crow underwent a lumpectomy and seven weeks of radiation therapy and was declared cancer-free. Audrey Gibbs, The Tennessean, 15 Aug. 2025 See All Example Sentences for lumpectomy

Word History

First Known Use

1972, in the meaning defined above

Time Traveler
The first known use of lumpectomy was in 1972

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Cite this Entry

“Lumpectomy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lumpectomy. Accessed 3 Nov. 2025.

Medical Definition

lumpectomy

noun
lump·​ec·​to·​my ˌləm-ˈpek-tə-mē How to pronounce lumpectomy (audio)
plural lumpectomies
: excision of a breast tumor with a limited amount of associated tissue

called also tylectomy

compare quadrantectomy

More from Merriam-Webster on lumpectomy

Last Updated: - Updated example sentences
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