胚胎发生 pēitāifāshēng embryogenesis Origin Definitions Defs Strokes Stroke Words Sentences Sents 胚胎 pēitāi noun embryo an organism in its early stages of development; an embryo or fetus发生 發生 fāshēng genesis (biology) genesis; ontogeny; the process of an organism developing from a fertilized egg or spore