amniocentesis

noun

am·​nio·​cen·​te·​sis ˌam-nē-ō-(ˌ)sen-ˈtē-səs How to pronounce amniocentesis (audio)
plural amniocenteses ˌam-nē-ō-(ˌ)sen-ˈtē-ˌsēz How to pronounce amniocentesis (audio)
: the surgical insertion of a hollow needle through the abdominal wall and into the uterus to obtain amniotic fluid especially for the determination of fetal sex or chromosomal abnormality

Examples of amniocentesis in a Sentence

Recent Examples on the Web Izabela never had amniocentesis to confirm a diagnosis. TIME, 13 Oct. 2023 The pregnancies of carrier couples could be monitored by amniocentesis and terminated if the fetus was affected. Jeff Wheelwright, Discover Magazine, 20 May 2012 These might include chorionic villus sampling (CVS) or amniocentesis, which screen the baby for congenital disorders. Tricia O'Brien, Parents, 11 July 2023 But follow-up diagnostic tests, like amniocentesis and CVS, are generally done between the 15th and 20th week of pregnancy. ​wendy Wisner, Parents, 10 Aug. 2023 With amniocentesis, a needle is inserted through the abdomen into the uterus to sample amniotic fluid. Alex Hazlett, Parents, 14 Aug. 2023 The procedure, whose full name is amniocentesis, involves taking a sample of a pregnant woman’s amniotic fluid to diagnose genetic disorders. Sam Corbin, New York Times, 11 June 2023 While negotiating to ensure coverage by most major private insurance programs, the reimbursement for the test is expected to be similar to that of current invasive procedures like amniocentesis or CVS. Razib Khan, Discover Magazine, 26 Oct. 2011 Logan’s only daughter is 20 weeks pregnant, and her amniocentesis test has revealed a perfectly healthy baby. Lauren Puckett-Pope, ELLE, 17 Apr. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'amniocentesis.' 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

New Latin, from amnion + centesis puncture, from Greek kentesis, from kentein to prick — more at center

First Known Use

1957, in the meaning defined above

Time Traveler
The first known use of amniocentesis was in 1957

Dictionary Entries Near amniocentesis

Cite this Entry

“Amniocentesis.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/amniocentesis. Accessed 19 Apr. 2024.

Kids Definition

amniocentesis

noun
am·​nio·​cen·​te·​sis ˌam-nē-ō-(ˌ)sen-ˈtē-səs How to pronounce amniocentesis (audio)
plural amniocenteses -ˈtē-ˌsēz How to pronounce amniocentesis (audio)
: the procedure of inserting a hollow needle through the wall of the abdomen and into the uterus of a pregnant female to withdraw a sample of the fluid surrounding the fetus that is used to find out its sex and especially to check for abnormal chromosomes which may predict a birth defect

Medical Definition

amniocentesis

noun
am·​nio·​cen·​te·​sis ˌam-nē-ō-(ˌ)sen-ˈtē-səs How to pronounce amniocentesis (audio)
plural amniocenteses -ˌsēz How to pronounce amniocentesis (audio)
: the surgical insertion of a hollow needle through the abdominal wall and into the uterus of a pregnant female to obtain amniotic fluid especially to examine the fetal chromosomes for an abnormality and for the determination of sex

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