| 单词 | embryonic disc |
| 释义 | > as lemmasembryonic disc embryonic disc n. Embryology the blastoderm of a very early embryo; cf. germinal disc n. at germinal adj. Compounds. ΚΠ 1871 Mem. Boston Soc. Nat. Hist. 163 Fig. 15 shows the embryonic disk [of Limulus] still thicker, while the yolk is more distinctly walled by the tergal extension of the body walls. 1925 Jrnl. Mammalogy 6 117 The primitive streak and embryo of the opossum lie in the embryonic disc, only later to sink below the surface. 1987 M. Cartmill et al. Human Struct. 12 The notochord forms as a condensation in this mesoderm and grows toward the head end of the embryonic disk. 2011 S. Brewer et al. Pregnant Body Bk. 98 After implantation, the two-layered embryonic disk undergoes a rapid transformation into a three-layered disk. < as lemmas |
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