Definitions for ectoderm
ˈɛk təˌdɜrmec·to·derm

Princeton's WordNetRate this definition:0.0 / 0 votes

1. ectoderm, exoderm, ectoblastnoun

   the outer germ layer that develops into skin and nervous tissue

WiktionaryRate this definition:0.0 / 0 votes

1. ectodermnoun

   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.

WikipediaRate this definition:0.0 / 0 votes

1. Ectoderm

   The ectoderm is one of the three primary germ layers formed in early embryonic development. It is the outermost layer, and is superficial to the mesoderm (the middle layer) and endoderm (the innermost layer). It emerges and originates from the outer layer of germ cells. The word ectoderm comes from the Greek ektos meaning "outside", and derma meaning "skin".Generally speaking, the ectoderm differentiates to form epithelial and neural tissues (spinal cord, peripheral nerves and brain). This includes the skin, linings of the mouth, anus, nostrils, sweat glands, hair and nails, and tooth enamel. Other types of epithelium are derived from the endoderm.In vertebrate embryos, the ectoderm can be divided into two parts: the dorsal surface ectoderm also known as the external ectoderm, and the neural plate, which invaginates to form the neural tube and neural crest. The surface ectoderm gives rise to most epithelial tissues, and the neural plate gives rise to most neural tissues. For this reason, the neural plate and neural crest are also referred to as the neuroectoderm.

ChatGPTRate this definition:0.0 / 0 votes

1. ectoderm

   The ectoderm is one of the three primary germ layers in the very early embryo. This layer forms the skin, brain, nervous system, and other external tissues during embryonic development.

Webster DictionaryRate this definition:2.0 / 1 vote

1. Ectodermnoun

   the outer layer of the blastoderm; epiblast

2. Ectodermnoun

   the external skin or outer layer of an animal or plant, this being formed in an animal from the epiblast. See Illust. of Blastoderm

3. Etymology: [Ecto- + -derm.]

WikidataRate this definition:0.0 / 0 votes

1. Ectoderm

   Ectoderm is one of the three primary germ cell layers in the very early embryo. The other two layers are the mesoderm and endoderm, with the ectoderm as the most exterior layer. It emerges and originates from the outer layer of germ cells. The word ectoderm comes from the Greek ektos meaning "outside", and derma, meaning "skin." Generally speaking, the ectoderm differentiates to form the nervous system, tooth enamel and the epidermis. It also forms the lining of mouth, anus, nostrils, sweat glands, hair and nails. In vertebrates, the ectoderm has three parts: external ectoderm, the neural crest, and neural tube. The latter two are known as neuroectoderm.

Chambers 20th Century DictionaryRate this definition:0.0 / 0 votes

1. Ectoderm

   ek′to-dėrm, n. the external germinal layer of the embryo. [Gr. ektos, outside, derma, skin.]

U.S. National Library of MedicineRate this definition:0.0 / 0 votes

1. Ectoderm

   The outer of the three germ layers of an embryo.

EntomologyRate this definition:0.0 / 0 votes

1. Ectoderm

   the outer layer of skin: the outer layer of the blastoderm, giving rise to the nervous system and to epithelial structures of the body surface.

How to pronounce ectoderm?

1. Alex

   US English

   David

   US English

   Mark

   US English

   Daniel

   British

   Libby

   British

   Mia

   British

   Karen

   Australian

   Hayley

   Australian

   Natasha

   Australian

   Veena

   Indian

   Priya

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   Neerja

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   Zira

   US English

   Oliver

   British

   Wendy

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   Fred

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   Tessa

   South African

How to say ectoderm in sign language?

Numerology

1. Chaldean Numerology

   The numerical value of ectoderm in Chaldean Numerology is: 7

2. Pythagorean Numerology

   The numerical value of ectoderm in Pythagorean Numerology is: 2

Examples of ectoderm in a Sentence

1. Susan Maples:

   I worry about the long-term effects of a video like this, teeth are the only part of the ectoderm that does not replenish or heal itself— once it’s gone, it’s gone. You can color your hair, you can pierce your skin, damage your nail, shave an eyebrow— all of that comes back.

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References

1. ^ Princeton's WordNet
   http://wordnetweb.princeton.edu/perl/webwn?s=ectoderm
2. ^ Wiktionary
   https://en.wiktionary.org/wiki/Ectoderm
3. ^ Wikipedia
   https://en.wikipedia.org/wiki/Ectoderm
4. ^ ChatGPT
   https://chat.openai.com
5. ^ Webster Dictionary
   https://www.merriam-webster.com/dictionary/ectoderm
6. ^ Wikidata
   https://www.wikidata.org/w/index.php?search=ectoderm
7. ^ Chambers 20th Century Dictionary
   https://www.gutenberg.org/files/37683/37683-h/37683-h.htm#:~:text=ectoderm
8. ^ Entomology
   https://www.gutenberg.org/files/22748/22748-h/22748-h.htm#:~:text=ectoderm