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1. (n.) ectoderm
the outer germ layer in the embryo of a metazoan.
Etymology: (1860–65)
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| Definition of 'Ectoderm' |
Princeton's WordNet |
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1. (noun) ectoderm, exoderm, ectoblast
the outer germ layer that develops into skin and nervous tissue
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| Definition of 'Ectoderm' |
Webster Dictionary |
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1. (noun) Ectoderm
the outer layer of the blastoderm; epiblast
2. (noun) Ectoderm
the external skin or outer layer of an animal or plant, this being formed in an animal from the epiblast. See Illust. of Blastoderm
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| Definition of 'Ectoderm' |
U.S. National Library of Medicine |
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1. Ectoderm
The outer of the three germ layers of an embryo.
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