trisomy
noun
tri·so·my
ˈtrī-ˌsō-mē 
plural trisomies
: the condition (as in Down syndrome) of having one or a few chromosomes triploid in an otherwise diploid set
Examples of trisomy in a Sentence
Recent Examples on the Web
The ultimate mission is to someday eradicate trisomy conditions.
—
Rick Mauch, Fort Worth Star-Telegram, 24 Jan. 2024
Cox learned just after Thanksgiving that her fetus has trisomy 18, a fatal diagnosis.
—Elizabeth Robinson, NBC News, 12 Dec. 2023
In late November 2023, Dallas area resident Cox, who is 31 and shares two children with her husband, learned that her fetus had trisomy 18, a rare chromosomal disorder.
—Elizabeth Logan, Glamour, 14 Dec. 2023
Cox's fetus was diagnosed with trisomy 18, a condition described as incompatible with life.
—Fritz Farrow, ABC News, 24 Jan. 2024
The 31-year-old was carrying an unborn baby with a slew of health problems, including full trisomy 18, a diagnosis that is often terminal.
—Nicole Russell, Washington Examiner, 12 Jan. 2024
Cox’s developing fetus was diagnosed with trisomy 18, a rare chromosomal disorder likely to cause stillbirth or infant death shortly after a baby is born.
—Aria Bendix, NBC News, 13 Dec. 2023
Cox, 31, is more than 20 weeks pregnant and her fetus has been diagnosed with a deadly genetic condition called trisomy 18, and her own health is at risk.
—Vanessa Etienne, Peoplemag, 12 Dec. 2023
Cox and her husband, Justin—who have two children, calling to mind the fact that most people who have abortions are parents already—recently found out that Cox’s pregnancy with their third child carried no chance of survival thanks to a fatal condition called trisomy 18.
—Emma Specter, Vogue, 12 Dec. 2023
Rick Mauch, Fort Worth Star-Telegram, 24 Jan. 2024
Cox learned just after Thanksgiving that her fetus has trisomy 18, a fatal diagnosis.
—Elizabeth Robinson, NBC News, 12 Dec. 2023
In late November 2023, Dallas area resident Cox, who is 31 and shares two children with her husband, learned that her fetus had trisomy 18, a rare chromosomal disorder.
—Elizabeth Logan, Glamour, 14 Dec. 2023
Cox's fetus was diagnosed with trisomy 18, a condition described as incompatible with life.
—Fritz Farrow, ABC News, 24 Jan. 2024
The 31-year-old was carrying an unborn baby with a slew of health problems, including full trisomy 18, a diagnosis that is often terminal.
—Nicole Russell, Washington Examiner, 12 Jan. 2024
Cox’s developing fetus was diagnosed with trisomy 18, a rare chromosomal disorder likely to cause stillbirth or infant death shortly after a baby is born.
—Aria Bendix, NBC News, 13 Dec. 2023
Cox, 31, is more than 20 weeks pregnant and her fetus has been diagnosed with a deadly genetic condition called trisomy 18, and her own health is at risk.
—Vanessa Etienne, Peoplemag, 12 Dec. 2023
Cox and her husband, Justin—who have two children, calling to mind the fact that most people who have abortions are parents already—recently found out that Cox’s pregnancy with their third child carried no chance of survival thanks to a fatal condition called trisomy 18.
—Emma Specter, Vogue, 12 Dec. 2023
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'trisomy.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
Word History
Etymology
tri- + -some entry 3 + -y entry 2
First Known Use
1930, in the meaning defined above
Dictionary Entries Near trisomy
Cite this Entry
“Trisomy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/trisomy. Accessed 18 Apr. 2024.
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Medical Definition
trisomy
noun
tri·so·my
ˈtrī-ˌsō-mē
plural trisomies
: the condition (as in Down syndrome) of having one or a few chromosomes triploid in an otherwise diploid set
More from Merriam-Webster on trisomy
Britannica.com: Encyclopedia article about trisomy
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