Trophoblast

Trophoblasts (from Greek trephein: to feed, and blastos: germinator) are cells forming the outer layer of a blastocyst, which provide nutrients to the embryo and develop into a large part of the placenta. They are formed during the first stage of pregnancy and are the first cells to differentiate from the fertilized egg. This layer of trophoblasts
Found on http://en.wikipedia.org/wiki/Trophoblast

trophoblast

[n] - the membrane that forms the wall of the blastocyst in early development
Found on http://www.webdictionary.co.uk/definition.php?query=trophoblast

trophoblast

Extra-embryonic layer of epithelium that forms around the mammalian blastocyst, and attaches the embryo to the uterus wall. Forms the outer layer of the chorion, and together with maternal tissue will form the placenta.
Found on http://www.encyclo.co.uk/visitor-contributions.php

trophoblast

<embryology> Extra embryonic layer of epithelium that forms around the mammalian blastocyst and attaches the embryo to the uterus wall. ... Forms the outer layer of the chorion and together with maternal tissue will form the placenta. ... (18 Nov 1997) ...
Found on http://www.mondofacto.com/facts/dictionary?trophoblast

trophoblast

noun the membrane that forms the wall of the blastocyst in early development; aids implantation in the uterine wall; `after implantation of the blastocyst in the uterine wall the trophoblast divides into two layers, the chorion and the placenta`
Found on http://wordnetweb.princeton.edu/perl/webwn?s=trophoblast

trophoblast

(tro´fo-blast) the peripheral cells of the blastocyst, which attach the zygote to the uterine wall and become the placenta and the membranes that nourish and protect the developing organism. The inner cellular layer is the cytotrophoblast and the outer layer is the syntrophoblast.
Found on http://www.encyclo.co.uk/local/21001

trophoblast

(from the article `blastocyst`) The enveloping layer is now referred to as the trophoblast. It does not contribute directly to the formation of the embryo but rather serves to ... ...is propelled slowly down the oviduct by action of cilia in the oviduct lining. At the end of cleavage a solid ball of cells called a morula is ... ...cl...
Found on http://www.britannica.com/eb/a-z/t/84

trophoblast

trophoblast, trophoblastic The cell layer that forms the outer wall of the blastocyst. It supplies the embryo with nutrients and aids with implanting the embryo in the uterine wall. In mammals, a layer of tissue formed by cells forming the outer covering of the blastocyst. After implanation of the blastocyst, this layer is no longer cellular. At t
Found on http://www.wordinfo.info/words/index/info/view_unit/2191/9

Trophoblast

The outer layer of the cells forming the wall of the blastocyst. Trophoblasts play an important role in attaching the early embryo to the uterine wall and in the eventual formation of the placenta.
Found on http://www.pregnology.com/AZ/T/4

trophoblast

Type: Term Pronunciation: trof′ō-blast, trō′fō-blast Definitions: 1. The mesectodermal cell layer covering the blastocyst that erodes the uterine mucosa and through which the embryo receives nourishment from the mother; the cells do not enter into the formation of the embryo itself but contribute to formation of the place
Found on http://www.medilexicon.com/medicaldictionary.php?t=94176

trophoblast

The outer layer of cells of a blastocyst that adhere to the endometrium during implantation.
Found on http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookglosst.html

trophoblast

A thin layer of cells that helps a developing embryo attach to the wall of the uterus, protects the embryo, and forms a part of the placenta.
Found on http://www.cancer.gov/dictionary?expand=T

Trophoblast

The outer layer of cells of a blastocyst that adhere to the endometrium during implantation.
Found on http://www.superglossary.com/Glossary/Science/Biology/
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