chorionic villus sampling


: biopsy of a villus of the chorion at usually 10 to 12 weeks of gestation to obtain fetal cells for the prenatal diagnosis of chromosomal abnormalities
abbreviation CVS

called also chorionic villi sampling

Examples of chorionic villus sampling in a Sentence

Recent Examples on the Web These might include chorionic villus sampling (CVS) or amniocentesis, which screen the baby for congenital disorders. Tricia O'Brien, Parents, 11 July 2023 Currently, determining a fetus's genome requires either amniocentesis, in which a needle is inserted through the mother's abdomen into the amniotic sac, or chorionic villus sampling, in which a piece of placenta is removed. Jennifer Welsh, Discover Magazine, 9 Dec. 2010 But that is not the case in a place like Texas, where a current six-week ban (likely to soon be followed by a near-total ban) would render moot the option of even an early prenatal diagnostic test such as chorionic villus sampling, which is typically administered at 10 weeks or later. Gary Stix, Scientific American, 18 July 2022 Diagnostic tests, generally performed through invasive procedures, such as chorionic villus sampling and amniocentesis, also focus on specific disorders and confer risk of pregnancy loss that may inversely correlate with access to high-quality care. Razib Khan, Discover Magazine, 6 June 2012 Both amniocentesis and chorionic villus sampling (another invasive procedure that collects placental cells from within the womb) carry a 1 percent risk of miscarriage. Amy Barth, Discover Magazine, 20 Sep. 2011 In the 1980s, doctors started using chorionic villus sampling, or CVS, an analysis of placental tissue that offers a diagnosis earlier in pregnancy. Anna Clark, ProPublica, 6 Dec. 2022 The high-probability patients are offered a more invasive diagnostic test using DNA either from the fetal cells floating in the amniotic fluid (amniocentesis) or from placental tissue (chorionic villus sampling). Sarah Zhang, The Atlantic, 18 Nov. 2020 Deborah and Ariel Levy sued for damages, alleging the physician who had performed the chorionic villus sampling procedure had mistakenly removed maternal tissue instead of fetal tissue. Bonnie Rochman, Slate Magazine, 3 Mar. 2017

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'chorionic villus sampling.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1983, in the meaning defined above

Time Traveler
The first known use of chorionic villus sampling was in 1983

Dictionary Entries Near chorionic villus sampling

Cite this Entry

“Chorionic villus sampling.” Dictionary, Merriam-Webster, Accessed 16 Jun. 2024.

Medical Definition

chorionic villus sampling

variants also chorionic villi sampling
: biopsy of the chorion frondosum through the abdominal wall or by way of the vagina and uterine cervix at 10 to 12 weeks of gestation to obtain fetal cells for the prenatal diagnosis of chromosomal abnormalities
abbreviation CVS

More from Merriam-Webster on chorionic villus sampling

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!