| 释义 |
epiboly Embryol.|ɛˈpɪbəlɪ|
Also epibole |-əliː|.
[Gr. ἐπιβολή a throwing or laying on.]
The inclusion of one set of segmenting cells within another by reason of the more rapid division of the latter. Hence epibolic |ɛpɪˈbɒlɪk| a.
1875E. R. Lankester in Q. Jrnl. Microsc. Sci. XV. 163 Embolé and epibolé are but two extreme forms of one and the same process. Ibid. 165 (heading) Epibolic invaginate Planulæ. 1877T. H. Huxley Man. Anat. Invertebr. Anim. xii. 683 The process of inclusion of the hypoblast within the epiblast may have the appearance of the growth of the latter over the former, or what is termed epiboly. 1887A. C. Haddon Introd. Study Embryol. ii. 33 The gastrula in the Frog is thus formed partly by invagination (embolé), partly by overgrowth (epibolé). 1897Parker & Haswell Text-bk. Zool. I. iv. 205 The stage has been produced, not by a process of invagination or tucking-in, but by one of epiboly or overgrowth. Ibid. v. 257 The process by which the germinal layers have become formed is..a process of epibolic gastrulation. 1914[see endoderm]. 1956K. F. Lagler Freshwater Fishery Biol. (ed. 2) vi. 97 When epiboly is about half completed in the Atlantic salmon, a few pairs of body segments (somites) are already visible. 1966Epibolic [see embolic a. 2]. |