nidation

[ni-da´shun]

Nidation, occurring over the period between 7 to 10 days after fertilization. From Dorland's, 2000.

ni·da·tion

(nī-dā'shŭn),

Embedding of the blastocyst in the uterine endometrium.

[L. nidus, nest]

/ni·da·tion/ (ni-da´shun) implantation (1).

[nīdā′shən]

Etymology: L, nidus, nest

the process by which an embryo burrows into the endometrium of the uterus. Also called implantation. See also placenta, uterus.

Implantation of a blastocyst into the endometrium

Embryology Implantation of a blastocyst into the endometrium. See Blastocyst.

(nī-dā'shŭn)

Embedding of the blastocyst in the uterine endometrium.

[L. nidus, nest]

implantation of the fertilized ovum in the endometrium of the uterus in pregnancy.

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References in periodicals archive ?

To determine the causes of sterility or impaired fertility, one must visualize the process of reproduction from gametogenesis to nidation.

The other reason given for the 14-day period is the nidation of the embryo in the womb of the mother which takes place within this period.

As the human blastocyst is capable of implanting at extrauterine locations, there may not be rigorous requirements for nidation to succeed.