notochord

详细解释:n. 脊索
【医】 脊索

词型变化：

形容词:notochordal

英语解释：

名词 notochord:

a flexible rodlike structure that forms the supporting axis of the body in the lowest chordates and lowest vertebrates and in embryos of higher vertebrates

详细解释：

no.to.chord

n.（名词）
A flexible rodlike structure that forms the main support of the body in the lowest chordates, such as the lancelet; a primitive backbone.
脊索：细胞构成的一条纵长可弯曲的杆状结构，其作用是引导产生神经板，形成躯体的支持轴
A similar structure in embryos of higher vertebrates, from which the spinal column develops.
脊索：更为高等的脊椎动物胚胎中的类似结构，脊椎骨由此发育

来源：
Greek nôton [back]
希腊语 nôton [后背]
chord 2
chord2

【引伸】
no.tochord.al
adj.（形容词）