Look up: Blastocyst

1. 
   Blastocyst
   The rapidly dividing fertilised egg at around the stage when it enters the uterus.
   Found on http://www.babyguide.co.uk/glossary/inde
   
   
2. 
   blastocyst
   The fertilised egg at around the stage when it enters the uterus. The blastocyst continually and rapidly divides into more and more cells on the way to becoming an embryo.
   Found on http://www.babycentre.co.uk/glossary/b/
   
   
3. 
   Blastocyst
   The stage at which the embryo has reached 4-5 days, a fluid filled cyst has formed, and the cells have begun to differentiate into the inner cell mass (which will form the fetus) and the trophectoderm (which will form the placenta and fetal membranes). The embryo has to hatch from the zona pellucida before implantation can take place - photograph courtesy of Essex Fertility Centre www.essexfertility.co.uk
   Found on http://www.ifcresourcecentre.co.uk/gloss
   
   
4. 
   blastocyst
   Mammalian embryo at the stage at which it is implanted into the wall of the uterus. [9]
   Found on http://sis.nlm.nih.gov/enviro/iupacgloss
   
   
5. 
   Blastocyst
   Blastocyst: A thin-walled hollow structure in early embryonic development that contains a cluster of cells called the inner cell mass from which the embryo arises. The outer layer of cells gives rise to the placenta and other supporting tissues needed for fetal development within the uterus while the inner cell mass cells gives rise to the tissues ...
   Found on http://www.medterms.com/script/main/art.
   
   
6. 
   blastocyst
   In mammalian development, cleavage produces a thin-walled hollow sphere, whose wall is the trophoblast, with the embryo proper being represented by a mass of cells at one side. The blastocyst is formed before implantation and is equivalent to the blastula.
   Found on http://www.mblab.gla.ac.uk/dictionary/
   
   
7. 
   Blastocyst
   Blas'to·cyst noun [ Greek blasto`s sprout + English cyst .] (Biol.) The germinal vesicle.
   Found on http://www.encyclo.co.uk/webster/B/63
   
   
8. 
   blastocyst
   In mammalian development, cleavage produces a thin walled hollow sphere, whose wall is the trophoblast, with the embryo proper being represented by a mass of cells at one side. The blastocyst is formed before implantation and is equivalent to the blastula. ... (18 Nov 1997) ...
   Found on http://www.mondofacto.com/facts/dictiona
   
   
9. 
   Blastocyst
   The `blastocyst` is an early stage of the human (or other mammal) development early in pregnancy. It is the structure formed in early human embryogenesis, after the formation of the blastocoel, but before implantation. It possesses an inner cell mass, or embryoblast, and an outer cell mass, or trophoblast. The human blastocyst comprises 70-100 cells. It is preceded by a zygote, the fertilized egg cell, and succeeded by an embryo. Other definition...
   Found on http://en.wikipedia.org/wiki/Blastocyst
   
   
10. 
    blastocyst
    (blas´to-sist) the mammalian conceptus in the postmorula stage, consisting of an embryoblast (inner cell mass) and a thin trophoblast layer enclosing a blastocyst cavity.
    Found on http://www.mercksource.com/pp/us/cns/cns
    
    
11. 
    Blastocyst
    • (n.) The germinal vesicle.
    Found on http://thinkexist.com/dictionary/meaning
    
    
12. 
    blastocyst
    a distinctive stage of a mammalian embryo. It is a form of blastula that develops from a berrylike cluster of cells, the morula. A cavity appears in ... [5 related articles]
    Found on http://www.britannica.com/eb/a-z/b/77
    
    
13. 
    blastocyst
    The modified blastula stage of mammalian embryos, consisting of the inner cell mass and a thin trophoblast layer enclosing the blastocele. Syn: blastodermic vesicle [blasto- + G. kystis, bladder]
    Found on http://www.stedmans.com/section.cfm/45
    
    
14. 
    blastocyst
    Human blastocyst A preimplantation embryo. The blastocyst consists of a sphere made up of an outer layer of cells (trophectoderm), a fluid-filled cavity (blastocoel), and a cluster of cells on the interior (inner cell mass). The outer layer of cells goes on to form the placenta. The inner clust...
    Found on http://www.daviddarling.info/encyclopedi
    
    
15. 
    Blastocyst
    The embryo at the time of implantation into the inner wall of the uterus. A blastocyst contains a single layer of outer cells, a fluid-filled cavity and a mass of inner cells. The surface cells of the blastocyst will become the placenta while the inner cells will become the fetus.
    Found on http://www.pregnology.com/AZ/B/4