morulation 桑葚胚形成; 桑椹胚形成
mor·u·la·tion /ˌmɔr(j)əˈleʃən, ˌmɑr-/ 名詞 桑椹胚形成
Mor·u·la·tion n. Biol. The process of cleavage, or segmentation, of the ovum, by which a morula is formed. ◄ ►