implantation

noun

im·​plan·​ta·​tion ˌim-ˌplan-ˈtā-shən 

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

Example Sentences

Recent Examples on the Web

Experiments in zero gravity with rats, quail eggs, jellyfish and wasps have not been promising for fertilization, implantation or gestation, with different problems arising within each species and at each stage. —Korey Haynes, Discover Magazine, 12 June 2017

Almost all of the children had successful implantations. —Lizzy Lawrence, STAT, 12 Apr. 2023

In particular, Rivron hopes the monkey blastoids can provide insights into why implantation often fails in humans. —Bymitch Leslie, science.org, 6 Apr. 2023

Early employee engagement can also help lead to more successful adoption and implantation in future stages. —Mike Sekits, Forbes, 17 Mar. 2023

There are also no reported instances of involuntary microchip implantation. —Camille Caldera, USA TODAY, 2 Aug. 2020

One-Step prevents pregnancy by acting on ovulation, which occurs well before implantation. —Pam Belluck, New York Times, 23 Dec. 2022

In Utah, a judge issued a fourteen-day restraining order against the state’s trigger law, which forbids most abortions after implantation; the following day, a different Utah law, from 2019, came into effect, prohibiting abortions after eighteen weeks. —Jessica Winter, The New Yorker, 2 July 2022

Normally after ovulation, the concentration of estrogen receptors in the uterine wall dwindles to prepare for implantation. —Jena Pincott, Scientific American, 1 June 2018

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Word History

First Known Use

1578, in the meaning defined at sense 1a

Kids Definition

implantation

noun

im·​plan·​ta·​tion ˌim-ˌplan-ˈtā-shən 

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 

: 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