brachytherapy
noun
brachy·ther·a·py
ˌbra-ki-ˈther-ə-pē 
-ˈthe-rə-
: radiotherapy in which the source of radiation is placed (as by implantation) in or close to the area being treated
Examples of brachytherapy in a Sentence
Recent Examples on the Web
Some patients with early-stage or intermediate-risk prostate cancer undergo additional treatment, including surgery, radiation or radioactive seed implants called brachytherapy.
—
Luisel Ricks-Santi, The Conversation, 20 May 2025
Treatment options can include surgery and multiple forms of therapy: beam radiation, brachytherapy, ablation, hormone, immunotherapy, targeted, and radiopharmaceutical.
—Addy Bink, The Hill, 18 May 2025
That company specializes in tools used in a prostate cancer treatment called brachytherapy, in which tiny radioactive sources are inserted into the tumor.
—IEEE Spectrum, 8 July 2015
Elizabeth joined Winship in 1988, specializing in brachytherapy and Gamma Knife medical physics care.
—Skyler Caruso, Peoplemag, 15 May 2024
By placing the radioactive source inside the body, brachytherapy can target tumors more directly than external beam radiotherapy.
—Behzad Ebrahimi, Discover Magazine, 5 Jan. 2024
An increasingly popular form of brachytherapy called high-dose rate brachytherapy involves using a tube to guide a more highly radioactive seed directly to the affected tissue before removing it after a few minutes.
—Behzad Ebrahimi, Discover Magazine, 5 Jan. 2024
Since then, radiation has evolved into treatments that include modern brachytherapy, inserting a radioactive source into a tumor, and focused beams of ionizing radiation that kill off cells while incurring as little off-target damage as possible.
—Angus Chen, STAT, 15 Aug. 2023
Another form of brachytherapy involves inserting small metal rods that remain in the prostate for a couple of days while radiation is delivered into the prostate on an inpatient basis.
—Dr. Jared Heiner, idahostatesman, 19 Feb. 2018
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Luisel Ricks-Santi, The Conversation, 20 May 2025
Treatment options can include surgery and multiple forms of therapy: beam radiation, brachytherapy, ablation, hormone, immunotherapy, targeted, and radiopharmaceutical.
—Addy Bink, The Hill, 18 May 2025
That company specializes in tools used in a prostate cancer treatment called brachytherapy, in which tiny radioactive sources are inserted into the tumor.
—IEEE Spectrum, 8 July 2015
Elizabeth joined Winship in 1988, specializing in brachytherapy and Gamma Knife medical physics care.
—Skyler Caruso, Peoplemag, 15 May 2024
By placing the radioactive source inside the body, brachytherapy can target tumors more directly than external beam radiotherapy.
—Behzad Ebrahimi, Discover Magazine, 5 Jan. 2024
An increasingly popular form of brachytherapy called high-dose rate brachytherapy involves using a tube to guide a more highly radioactive seed directly to the affected tissue before removing it after a few minutes.
—Behzad Ebrahimi, Discover Magazine, 5 Jan. 2024
Since then, radiation has evolved into treatments that include modern brachytherapy, inserting a radioactive source into a tumor, and focused beams of ionizing radiation that kill off cells while incurring as little off-target damage as possible.
—Angus Chen, STAT, 15 Aug. 2023
Another form of brachytherapy involves inserting small metal rods that remain in the prostate for a couple of days while radiation is delivered into the prostate on an inpatient basis.
—Dr. Jared Heiner, idahostatesman, 19 Feb. 2018
Cite this Entry
“Brachytherapy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/brachytherapy. Accessed 25 Jul. 2025.
Copy CitationMedical Definition
brachytherapy
noun
brachy·ther·a·py
-ˈther-ə-pē
plural brachytherapies
: radiotherapy in which the source of radiation is placed (as by implantation) in or close to the area being treated
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