germ layer; embryonic layer
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Meanings
1 sense · 3 examplesnoun
germ layer; embryonic layer
Technical term in embryology and developmental biology. In humans and higher animals, the three germ layers (三胚层) are the ectoderm (外胚层), mesoderm (中胚层), and endoderm (内胚层), which differentiate to form all tissues and organs.
Sān三
pēi胚
céng层
dòng动
wù物
bǐ比
liǎng两
pēi胚
céng层
dòng动
wù物
gèng更
wéi为
gāo高
děng等
。
Triploblastic animals are more advanced than diploblastic animals.
Wài外
pēi胚
céng层
jiāng将
fā发
yù育
chéng成
pí皮
fū肤
hé和
shén神
jīng经
xì系
tǒng统
。
The ectoderm will develop into the skin and nervous system.
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Pēi胚
tāi胎
fā发
yù育
guò过
chéng程
zhōng中
，
pēi胚
céng层
fēn分
huà化
xíng形
chéng成
gè各
zhǒng种
zǔ组
zhī织
hé和
qì器
guān官
。
During embryonic development, the germ layers differentiate to form various tissues and organs.