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Definition of Ectoderm
1. Noun. The outer germ layer that develops into skin and nervous tissue.
Generic synonyms: Germ Layer
Specialized synonyms: Neural Tube
Derivative terms: Ectodermal, Ectodermic
Definition of Ectoderm
1. n. The outer layer of the blastoderm; epiblast.
Definition of Ectoderm
1. Noun. Outermost of the three tissue layers in the embryo of a metazoan animal. Through development, it will produce the epidermis (skin) and nervous system of the adult. ¹
¹ Source: wiktionary.com
Definition of Ectoderm
1. the outermost germ layer of an embryo [n -S]
Medical Definition of Ectoderm
1. 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. This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)
Lexicographical Neighbors of Ectoderm
Literary usage of Ectoderm
Below you will find example usage of this term as found in modern and/or classical literature:
1. Science by American Association for the Advancement of Science (1901)
"We see from this that the first splitting in the ectoderm described above is the
separation of amnion from the rest of the ectoderm. ..."
2. Anatomy, Descriptive and Applied by Henry Gray (1913)
"A third region is at the hind end of the embryo where the ectoderm and entoderm
come into apposition and form the cloacal membrane. ..."
3. Encyclopaedia Britannica: A Standard Work of Reference in Art, Literature (1907)
"The movements of the hydra are chiefly brought about by changes of form of the
ectoderm cells, especially of tail-like processes of these cells, which, ..."
4. The Encyclopedia Americana: A Library of Universal Knowledge (1918)
"The ectoderm gives rise to the outer covering of the body, the nervous system
and sense organs; the endoderm to the alimentary canal and its outgrowths, ..."
5. The Development of the Frog's Egg: An Introduction to Experimental Embryology by Thomas Hunt Morgan (1897)
"The medullary plate is formed, for the most part, from a thickening of the inner
layer of the ectoderm (Figs. 26 and 42). It is continuous on each side with ..."
6. Quarterly Journal of Microscopical Scienceedited by Biologists Limited, The Company of. edited by Biologists Limited, The Company of. (1880)
"Just above Ve. two neighbouring capsules are seen to have coalesced ; Go.
the immature outgrowths of the radial canals, in the ectoderm of which the ..."
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