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ectoderm

/ˈɛktədɜːrm/ /ˈɛktəˌdɜːrm/

Meanings
noun

外胚层，外胚层组织。

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.

Examples :

"During embryonic development, the ectoderm differentiates to form the skin and brain. "
在胚胎发育过程中，外胚层会分化形成皮肤和大脑。
biology anatomy physiology organism animal

Related Words

Illustration outermost

outermost adjective

/ˈaʊtɚmoʊst/

最外面的，外部的

"The outermost layer of the onion was paper-thin. "

洋葱最外面的一层薄如纸。

Illustration development

development noun

/dɪˈvɛləpmənt/

发展， 进展

"The development of this story has been slow."

这个故事的情节进展缓慢。

Illustration through

through noun

/θɹuː/ /θɹu/

贯石, 穿石。

"The dry-stone wall used a large, flat through to support the top stones. "

这堵干砌石墙用了一块又大又平的贯石来支撑顶部的石头。

Illustration embryonic

embryonic adjective

/ˈɛm.bɹi.ɒn.ɪk/

胚胎的，萌芽的

"The scientist studied the embryonic development of the frog. "

这位科学家研究了青蛙的胚胎发育过程。

Illustration epidermis

epidermis noun

/ˌɛ.pɪ.ˈdɜː.mɪs/ /ˌɛ.pə.ˈdɝ.məs/

表皮，外皮。

"The sunburn only affected the epidermis, so it wasn't too deep. "

晒伤只伤到了表皮，所以不是很严重。

Illustration differentiates

differentiates verb

/ˌdɪfəˈɹɛnʃiˌeɪts/ /ˌdɪfəˈɹɛnʃiˌeɪts/

区分，区别，使有差异。

"The taste of salt differentiates the soup from plain water. "

盐的味道使汤与白水区分开来。

Illustration tissue

tissue noun

/ˈtɪsjuː/ /ˈtɪʃu/

薄纱，绢。

"The delicate tissue paper wrapped the fragile antique doll. "

包裹着易碎古董娃娃的是精致的薄纱纸。

Illustration nervous

nervous adjective

/ˈnɜːvəs/ /ˈnɝːvəs/

神经的, 肌腱的

"The dancer's nervous muscles tensed before her performance. "

舞蹈演员演出前，她那些绷紧的、连接肌肉和骨骼的肌腱让她浑身紧张。

Illustration embryo

embryo noun

/ˈɛmbɹi.əʊ/ /ˈɛmbɹi.oʊ/

胚胎，孕育初期。

"The scientist studied the embryo to understand how the early stages of development occur. "

科学家研究胚胎，以了解生命孕育初期是如何发育的。

Illustration layers

layers noun

/lɛəz/ /ˈleɪ.ɚz/

层，层次，层面

"After the first coat of paint dried, he applied another layer."

第一遍油漆干了之后，他又刷了一层。

Illustration produce

produce verb

/pɹəˈdjuːs/ /pɹəˈdus/ /ˈpɹɒdjuːs/ /ˈpɹoʊ.dus/

生产，制造，产生

"The farmer's fields produced a bountiful harvest of tomatoes this year. "

今年农民的田地里生产了大量的西红柿。

Illustration metazoan

metazoan noun

/ˌmɛtəˈzoʊən/ /ˌmɛtəˈzoʊæn/

后生动物

"The biology textbook explained that a human, being an animal developing from an embryo with three distinct tissue layers, is classified as a metazoan. "

生物课本解释说，人类作为一种从具有三个明显组织层胚胎发育而来的动物，被归类为后生动物。