Definition of nidation in English:

nidation

noun

  • another term for implantation
    • ‘The tissue sample should be aspired either with a Novak cannula or with a plastic Cornier's Pipelle around the time when nidation normally takes place, which means between day 20 to 22 of the cycle.’
    • ‘It was noted that progesterone alone, in contrast with the rat which requires oestrogen for nidation, can maintain blastocysts through nidation in the ovariectomized hamster.’
    • ‘If Price intended this, did he not, by intending that a nidation be prevented, either then or later, necessarily intend to induce abortion?’
    • ‘It is essential for the nidation of the conceptus and is thought to inhibit myometrial contractility, thereby ensuring that the uterus is kept in a quiescent state throughout pregnancy.’
    • ‘Reabsorption of these minute embryos due to lack of nidation will lead the dog owner to believe that conception did not occur when in fact it did.’

Origin

Late 19th century: from Latin nidus ‘nest’ + -ation.

Pronunciation

nidation

/nīˈdāSHən/