in vitro fertilization

noun

Definition of in vitro fertilization

: fertilization of an egg in a laboratory dish or test tube specifically : fertilization by mixing sperm with eggs surgically removed from an ovary followed by uterine implantation of one or more of the resulting fertilized eggs —abbreviation IVF

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Recent Examples on the Web

Using in vitro fertilization, doctors created embryos and then tested them for the genetic disease. — Kevin Flower, CNN, "FDA wins major victory in campaign against stem cell clinic," 4 June 2019 While human embryos can be successfully frozen for in vitro fertilization, there's a big difference between freezing a cluster of cells and a human being, critics say. — Stephanie Innes, azcentral, "Scottsdale cryonics facility, the home of Ted Williams' head, hopes frozen dead people will live again," 17 May 2019 Spirtos expects the Society for Assisted Reproductive Technology, a professional organization for in vitro fertilization clinics, to come up with new quality control guidelines for alarm and tank monitoring in light of the recent incidents. — Ginger Christ And Julie Washington, cleveland.com, "UH fertility clinic's incident: What we know, what we still don't," 18 Mar. 2018 Trying to get pregnant with in vitro fertilization is a gamble. — Emily Mullin, WSJ, "IVF Often Doesn’t Work. Could an Algorithm Help?," 4 Apr. 2019 The happy news comes after a difficult journey for the couple—both Jason and Brittany have been very open about both of Brittany's pregnancies, including her struggles with endometriosis and in vitro fertilization. — Taysha Murtaugh, Country Living, "Jason Aldean's Wife Brittany Just Gave Birth to Their Baby Girl," 5 Feb. 2019 Coping with fertility issues and the economic and emotional upheaval of in vitro fertilization, the pair seems to have exhausted all options. — Michaela Bechler, Vogue, "5 New Netflix Movies We’re Excited About This Fall," 10 Aug. 2018 Technologies such as in vitro fertilization, ovulation-enhancing medicines, egg storage and artificial insemination have been around for decades now, and remain extremely expensive in many cases. — Lyman Stone, New York Times, "American Women Are Having Fewer Children Than They’d Like," 13 Feb. 2018 In addition, in vitro fertilization also started to take off around then, with the first IVF baby born in 1978, Markens notes, which made surrogacy easier in some ways. — Olivia B. Waxman, Time, "The Complicated History of Surrogacy From 'Baby M' to Kim Kardashian and Kanye West," 16 Jan. 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'in vitro fertilization.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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Last Updated

17 Jun 2019

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The first known use of in vitro fertilization was in 1969

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in vitro fertilization

noun

Medical Definition of in vitro fertilization

: fertilization of an egg in a laboratory dish or test tube specifically : mixture usually in a laboratory dish of sperm with eggs which have been obtained from an ovary that is followed by introduction of one or more of the resulting fertilized eggs into a female's uterus —abbreviation IVF