(botany) a minute rudimentary plant contained within a seed or an archegonium
an animal organism in the early stages of growth and differentiation that in higher forms merge into fetal stages but in lower forms terminate in commencement of larval life
双语例句
用作名词 (n.)
Many people object to experimentation on embryos. 许多人反对用胚胎做实验。
These cells are then injected into mouse embryos. 然后这些细胞再注射回老鼠的胚胎。
