implantation

noun
im·​plan·​ta·​tion | \ ˌim-ˌplan-ˈtā-shən How to pronounce implantation (audio) \

Definition of implantation

1a : the act or process of implanting something
b : the state resulting from being implanted
2 in placental mammals : the process of attachment of the early embryo to the maternal uterine wall

Examples of implantation in a Sentence

Recent Examples on the Web

The embryos were grown in a petri dish in a process meant to mimic the embryo’s implantation in the uterus. Amy Dockser Marcus, WSJ, "Gene-Editing Technique in Human Embryos Draws Skepticism," 8 Aug. 2018 Some types of tubal blockage can affect implantation even after an embryo transfer via IVF and may require surgery, adds Dr. Styer. Jennifer Gerson, Marie Claire, "Why Can't I Get Pregnant?," 1 Oct. 2018 Laparoscopy is performed to examine the abdominal wall or the female pelvic organs and diagnose problems such as cysts, adhesions, fibroids, endometriosis, or infections that might be impacting ovulation or implantation. Jennifer Gerson, Marie Claire, "Health & Fitness," 1 Oct. 2018 To allow the implantation and development of a fetus that could be construed as a foreign invader, the immune system needs to selectively ease its normal level of vigilance. Melissa Healy, The Seattle Times, "Pregnancy and childbirth may protect some women from developing dementia," 23 July 2018 The science behind this is sketchy at best — daily birth control pills, hormonal IUDs, and emergency contraception all work primarily by inhibiting fertilization of an egg, not by preventing implantation of a fertilized embryo. Anna North, Vox, "Kavanaugh’s description of birth control as “abortion-inducing drugs,” explained," 7 Sep. 2018 And though embryos with more than half abnormal cells had lower implantation and birth rates, the pregnancies still resulted in healthy births, suggesting the abnormal cells were either eliminated or repaired. Sumathi Reddy, WSJ, "IVF Testing Spurs a Debate Over ‘Mosaic’ Embryos," 21 Mar. 2018 These nonhormonal early versions probably worked by interfering with ovulation, fertilization, or implantation by causing mild inflammation of the endometrium. Carolyn Todd, Allure, "The History and Evolution of Birth Control in America," 12 July 2018 Two hybrid embryos have been frozen for future implantation, the researchers said. Ben Guarino, Washington Post, "‘Beautiful’ embryos created from near-extinct rhinoceros sperm," 4 July 2018

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

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First Known Use of implantation

1578, in the meaning defined at sense 1a

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Last Updated

31 Jan 2019

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Time Traveler for implantation

The first known use of implantation was in 1578

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More Definitions for implantation

implantation

noun
im·​plan·​ta·​tion | \ ˌim-ˌplan-ˈtā-shən How to pronounce implantation (audio) \

Medical Definition of implantation

: the act or process of implanting or the state of being implanted: as
a : the placement of a natural or artificial tooth in an artificially prepared socket in the jawbone
b in placental mammals : the process of attachment of the embryo to the maternal uterine wall

called also nidation

c : medical treatment by the insertion of an implant

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More from Merriam-Webster on implantation

Rhyming Dictionary: Words that rhyme with implantation

Spanish Central: Translation of implantation

Nglish: Translation of implantation for Spanish Speakers

Britannica.com: Encyclopedia article about implantation

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