blastocyst
noun
blas·to·cyst
ˈbla-stə-ˌsist 
: the modified blastula of a placental mammal having an outer layer composed of the trophoblast
Examples of blastocyst in a Sentence
Recent Examples on the Web
These include: Would IVF doctors and embryologists be found at fault for the failure of an embryo to grow to the blastocyst stage (as occurs naturally in more than 50% of patients)?
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Fiorella Valdesolo, Allure, 13 Sep. 2024
Would these cruel judges have three-day-old blastocysts preserved until the end of time, and if so, at whose cost?
—New York Daily News Editorial Board, New York Daily News, 25 Feb. 2024
After being allowed to age for a period of usually three to six days, one (or sometimes more) of the fertilized embryos, called blastocysts, is then transferred into the uterus, which will hopefully lead to implantation and a healthy pregnancy.
—Gabrielle Rockson, Peoplemag, 5 June 2024
His team showed that mouse stem cells can self-organize into structures that resemble a blastocyst, which forms five or six days after sperm fertilizes an egg.
—Jennifer Ouellette, Ars Technica, 7 Apr. 2023
See all Example Sentences for blastocyst 
Fiorella Valdesolo, Allure, 13 Sep. 2024
Would these cruel judges have three-day-old blastocysts preserved until the end of time, and if so, at whose cost?
—New York Daily News Editorial Board, New York Daily News, 25 Feb. 2024
After being allowed to age for a period of usually three to six days, one (or sometimes more) of the fertilized embryos, called blastocysts, is then transferred into the uterus, which will hopefully lead to implantation and a healthy pregnancy.
—Gabrielle Rockson, Peoplemag, 5 June 2024
His team showed that mouse stem cells can self-organize into structures that resemble a blastocyst, which forms five or six days after sperm fertilizes an egg.
—Jennifer Ouellette, Ars Technica, 7 Apr. 2023
See all Example Sentences for blastocyst
These examples are programmatically compiled from various online sources to illustrate current usage of the word 'blastocyst.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
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“Blastocyst.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blastocyst. Accessed 5 Oct. 2024.
Copy CitationMedical Definition
blastocyst
noun
blas·to·cyst
ˈblas-tə-ˌsist
: the modified blastula of a placental mammal
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