implantation

noun

im·​plan·​ta·​tion ˌim-ˌplan-ˈtā-shən How to pronounce implantation (audio)
1
a
: 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
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The lawsuit requests that the clinic undertake free genetic testing for all patients and children whose births resulted from embryo implantation during the past five years, the amount of time the clinic had the couple's embryos in its possession. Michelle Del Rey, USA Today, 17 June 2026 This method delivers superior density and precise control over the angle and direction of implantation — essential for a perfectly natural result. Ascend Agency, New York Daily News, 16 June 2026 Downstream lithography and ion implantation steps are also more demanding than for silicon, partly because SiC’s hardness complicates polishing and etch uniformity. Aditya Jadhav, Interesting Engineering, 1 June 2026 Doctors sometimes recommend that a woman undergo multiple cycles of egg freezing to increase the number of eggs available for fertilization and implantation later on to up her chances of success, raising the cost even further. Will Croxton, CBS News, 31 May 2026 See All Example Sentences for implantation

Word History

First Known Use

1578, in the meaning defined at sense 1a

Time Traveler
The first known use of implantation was in 1578

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Cite this Entry

“Implantation.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/implantation. Accessed 26 Jun. 2026.

Kids Definition

implantation

noun
im·​plan·​ta·​tion ˌim-ˌplan-ˈtā-shən How to pronounce implantation (audio)
1
: the act of implanting something
2
: the process of becoming implanted or the resulting state

Medical Definition

implantation

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