单词 | embryo sac |
释义 | embryo sacnoun A cell inside the ovule of a flowering plant where fertilization occurs and which becomes the female gametophyte, containing the endosperm nucleus and the fertilized ovum that develops into the embryo.During pollination, the vegetative cell serves as a ‘powerhouse’ to deliver the generative cells to the embryo sac (female gametophyte)....
|
随便看 |
英语词典包含243303条英英释义在线翻译词条,基本涵盖了全部常用单词的英英翻译及用法,是英语学习的有利工具。