| 释义 |
notochord Biol.|ˈnəʊtəkɔːd|
[f. noto- + chord. So F. notochorde, -corde.]
A cartilaginous band or rod forming the primitive basis of the spinal column in vertebrates. Also Comb.
1848Owen Arch. & Homol. Vertebr. Skel. 86 An extremely delicate fibrous band,..inclosed by a membranous sheath, is the primitive basis, called ‘notochord’. 1870Rolleston Anim. Life p. lxix, A cylindrical fibro-cartilaginous sheath surrounding the cylindrical notochord. 1879tr. Haeckel's Evol. Man I. xiii. 418 The Amphioxus is enclosed in a firm membranous covering, the notochord⁓sheath. 1888Rolleston & Jackson Anim. Life 757 A notochord-like axis of modified endoderm cells. |