The outer of the three germ layers of the embryo (the other two being mesoderm and endoderm). Ectoderm gives rise to epidermis and neural tissue.
The outer basic layer of tissue in those animals with true tissues. In vertebrates, for instance, the embryonic ectoderm differentiates into the skin and also the nervous system.Found on http://www.ucmp.berkeley.edu/glossary/glossary_7.html
the outer of the three cell layers which form, as the clump of early embryonic cells begins to differentiate. The ectoderm will form the epidermis of the skin and the nervous system. The other two layers are the mesoderm and the endoderm.
Found on http://www.encyclo.co.uk/local/20169
- the outer germ layer that develops into skin and nervous tissueFound on http://www.webdictionary.co.uk/definition.php?query=ectoderm
Ectoderm: One of the three primary germ cell layers (the other two being the mesoderm and endoderm) that make up the very early embryo. The ectoderm is the outermost of the three layers. It differentiates to give rise to many important tissues and structures including the outer layer of the skin and its appendages (the sweat glands, hair, and nails...Found on http://www.medterms.com/script/main/art.asp?articlekey=20835
+ - derm
.] (Biol.) (a)
The outer layer of the blastoderm; epiblast. (b)
The external skin or outer layer of an animal or plant, this being formed in an animal from the epiblast. See Illust.
. Found on http://www.encyclo.co.uk/webster/E/7
The outer of the three germ layers of the embryo (the other two being mesoderm and endoderm). Ectoderm gives rise to epidermis and neural tissue. ... (18 Nov 1997) ... Found on http://www.encyclo.co.uk/local/20973
the outer germ layer that develops into skin and nervous tissueFound on http://wordnetweb.princeton.edu/perl/webwn?s=ectoderm
(ek´to-dәrm) the outermost of the three primary germ layers of the embryo; from it are derived the epidermis and epidermic tissues such as nails, hair, and glands of the skin; the nervous system; external sense organs such as the eye and ear; and the mucous membranes of the mouth and anus. adj., ectoder´mal,...Found on http://www.encyclo.co.uk/local/21001
• (n.) The outer layer of the blastoderm; epiblast. • (n.) The external skin or outer layer of an animal or plant, this being formed in an animal from the epiblast. See Illust. of Blastoderm.Found on http://thinkexist.com/dictionary/meaning/ectoderm/
the outermost of the three germ layers, or masses of cells, which appears early in the development of an animal embryo. In vertebrates, ectoderm ... [12 related articles]Found on http://www.britannica.com/eb/a-z/e/9
One of three so-called germ layers of tissue formed in the early development of a fertilized ovum (egg). It is the outer layer of the blastula and later differentiates, in most animals, into a skin or shell, a nervous system, lining tissue, parts of some sense organs, and various other tissues. Othe...Found on http://www.daviddarling.info/encyclopedia/E/ectoderm.html
One of three basic tissue types in the early embryo that forms from the outermost of the germ layers. As the ectoderm continues to develop, it will produce the skin, spinal cord, brain and nerves.Found on http://www.pregnology.com/AZ/E/1
ectoderm, layer of cells that covers the surface of an animal embryo after the process of gastrulation has occurred. This outer layer, together with the endoderm, or inner layer, is present in all early embryos. In the development of animals of the phyla Porifera, Ctenophora, and Cnidaria, these two...Found on http://www.infoplease.com/ce6/sci/A0816726.html
Type: Term Pronunciation: ek′tō-dĕrm Definitions: 1. The outer layer of cells in the embryo, after establishment of the three primary germ layers (ectoderm, mesoderm, endoderm), the germ layer in contact with the amnionic cavity. Synonyms: ectoblast1Found on http://www.medilexicon.com/medicaldictionary.php?t=27804
Greek ektos = outside, and derm = skin, hence, the outermost germ layer of the embryo.Found on http://www.anatomy.usyd.edu.au/glossary/glossary.cgi?
(ek;tuo-derm) The outermost of the three primary germ layers of an embryo.Found on http://www.mhhe.com/biosci/abio/glossary.mhtml
The outer layer of cells in embryonic development; gives rise to the skin, brain, and nervous system. Also, the outermost tissue layer in Found on http://www.emc.maricopa.edu/faculty/farabee/biobk/biobookglosse.html
Ectoderm is one of the three primary germ cell layers in the very early embryo. The other two layers are the mesoderm (middle layer) and endoderm (most proximal layer), with the ectoderm as the most exterior (or distal) layer. It emerges and originates from the outer layer of germ cells. The word ectoderm comes from the Greek ektos meaning `outsi....Found on http://en.wikipedia.org/wiki/Ectoderm
The outer embryological layer which gives rise to the nervous system, integument, and several other parts of an insect.Found on http://www.earthlife.net/insects/glossary.html
The outer layer of cells in embryonic development; gives rise to the skin, brain, and nervous system
Found on http://www.superglossary.com/Glossary/Science/Biology/
The outer basic layer of tissue in those animals with true tissues. In vertebrates, for instance, the embryonic ectoderm differentiates into the skin and also the nervous system.Found on http://www.ucmp.berkeley.edu/glossary/gloss7metazoa.html
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