詞語：notochord
notochord的解釋
notochord['nəutəkɔ:d]n. [動]脊索
notochord的意思
notochord 脊索;脊（背）索;notochord sheath 脊索鞘;
notochord的參考例句
1.notochord length A straight line measurement from tip of snout to tip of notochord. 脊索長度從吻尖到脊索頂端的直線大小。
2.Right now notochord cell disappears, pith nucleus becomes a fiber cartilage with soft and less cell gradually. 此時脊索細胞消失，髓核逐漸成為一個軟而細胞較少的纖維軟骨。
3.Larval and adult show that the characteristics of Jisuodongwu ─ ─ notochord, gill slits and dorsal nerve-cord. 幼體及成體均顯示脊索動物的特徵──脊索、鰓裂及背神經索。