lumpectomy
noun
lump·ec·to·my
ˌləm-ˈpek-tə-mē 
plural lumpectomies
: excision of a breast tumor with a limited amount of associated tissue
Examples of lumpectomy in a Sentence
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This included a lumpectomy to remove the tumor, egg preservation, a double mastectomy with reconstruction, 25 rounds of radiation, and long-term hormone suppressant medication.
—
Lydia Patrick, MSNBC Newsweek, 6 May 2025
She was diagnosed with breast cancer in 2004 at the age of 35 and needed to get a lumpectomy and chemotherapy.
—Monica Mercuri, Forbes.com, 21 May 2025
Crow subsequently underwent a lumpectomy in both breasts and seven weeks of radiation.
—Ashley Hume, FOXNews.com, 1 May 2025
In August, Knowles underwent a lumpectomy to remove the tumor, and is now happily cancer-free.
—Thania Garcia, Variety, 22 Apr. 2025
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Lydia Patrick, MSNBC Newsweek, 6 May 2025
She was diagnosed with breast cancer in 2004 at the age of 35 and needed to get a lumpectomy and chemotherapy.
—Monica Mercuri, Forbes.com, 21 May 2025
Crow subsequently underwent a lumpectomy in both breasts and seven weeks of radiation.
—Ashley Hume, FOXNews.com, 1 May 2025
In August, Knowles underwent a lumpectomy to remove the tumor, and is now happily cancer-free.
—Thania Garcia, Variety, 22 Apr. 2025
See All Example Sentences for lumpectomy
Cite this Entry
“Lumpectomy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/lumpectomy. Accessed 5 Jul. 2025.
Copy CitationMedical Definition
lumpectomy
noun
lump·ec·to·my
ˌləm-ˈpek-tə-mē
plural lumpectomies
: excision of a breast tumor with a limited amount of associated tissue
called also tylectomy
compare quadrantectomyLove words? Need even more definitions?
Merriam-Webster unabridged
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