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Related to blastocyst: blastocyst transfer


The modified blastula that is characteristic of placental mammals. Also called blastodermic vesicle.

blas′to·cys′tic adj.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.


1. (Biology) Also called: blastosphere the blastula of mammals: a sphere of cells (trophoblast) enclosing an inner mass of cells and a fluid-filled cavity (blastocoel)
2. (Biology) another name for germinal vesicle
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014


(ˈblæs tə sɪst)

the blastula of the mammalian embryo consisting of an inner cell mass, a cavity, and the trophoblast.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.


(or blastula) A hollow ball of cells formed from a morula about five days after fertilization.
Dictionary of Unfamiliar Words by Diagram Group Copyright © 2008 by Diagram Visual Information Limited
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.blastocyst - the blastula of a placental mammal in which some differentiation of cells has occurred
blastosphere, blastula - early stage of an embryo produced by cleavage of an ovum; a liquid-filled sphere whose wall is composed of a single layer of cells; during this stage (about eight days after fertilization) implantation in the wall of the uterus occurs
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
References in periodicals archive ?
The fertilised egg, now called a blastocyst, burrows into the lining and quickly forms a primitive placenta.
62.5% of ICSI 3PN embryos were found to progress back to the blastocyst stage, whereas 54.5% were heteroparental diploid blastocysts (5).
One such method, called blastocyst complementation, has already produced promising results.
Speaking about it, lead author Teppei Goto said, aACoeWe previously used blastocyst complementation to generate rat pancreas in a pancreatic mutant mice.aACA[yen]
Background: Despite recent advances that have improved the pregnancy success rates that can be achieved via in vitro fertilization (IVF) therapy, it is not yet clear which blastocyst morphological parameters best predict the outcomes of single blastocyst transfer.
SFF supplemented at 10% concentration showed a significant increase in blastocyst development when compared with other groups.
The main aim was to compare the effects of low (36.5[degrees]C) and conventional (38.5[degrees]C) culture temperatures on the oocyte maturation parameters and the embryonic development including the cell numbers, diameter and blastocyst quality.
The study consisted of control (non-vitrified) and case (vitrified-warmed) including 2-cell and blastocyst embryo groups.
This specific type of embryo transfer includes two embryos at different developmental stage--one cleavage stage (Day 3) embryo and one blastocyst (Day 5)--that are transferred together in one frozen embryo transfer procedure in an unstimulated cycle.
(2000) reported that bovine embryos can be cultured to the blastocyst stage individually in microwells (MWs) made on the bottom of a plastic culture dish with a darning needle [well of the well (WOW) system].
The hypothesis was that these cells should be less programmed than ES cells, which are taken from the 00-cell stage of development, called a blastocyst.