preimplantationadj.
/ˌpriːɪmplɑːnˈteɪʃn/, /ˌpriːɪmplanˈteɪʃn/, U.S. /ˈˌpriˌɪmplənˈteɪʃ(ə)n/, /ˈˌpriɪmˌplænˈteɪʃ(ə)n/ Biology and Medicine.
Occurring or existing before implantation of a fertilized ovum in the wall of the uterus, esp. between fertilization and implantation.
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the world > life > biology > biological processes > procreation or reproduction > conception > [adjective] > preconception or pre-implantation
preconceptional1904
preimplantation1934
1934 Lancet 17 Mar. 560/1 The post-ovulation pre-implantation proliferation of the endometrium..is an essential phase of the normal menstrual cycle.
1968 Nature 9 Nov. 596/1 Mosaicism, extending to most tissues of the body in mice, was achieved by fusing pre-implantation embryos together in vitro.
1972 R. L. Brinster in H. Balin & S. Glasser Reproductive Biol. xx. 751 In the human, where the gestation period is 270 days, the pre-implantation period is still only 8 days.
2004 Glamour Apr. 17/2 A new diagnostic tool known as preimplantation genetic diagnosis (PGD) can determine if embryos formed through in vitro fertilization carry genes that would cause fatal illnesses.
This entry has been updated (OED Third Edition, March 2007; most recently modified version published online March 2022).
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adj.1934- to make one's addresses
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