单词 | primary endosperm nucleus |
释义 | primary endosperm nucleusBotany noun The triploid nucleus which results from the fusion of the two polar nuclei of the embryo sac with a sperm nucleus, and which (usually) divides to form the endosperm tissue. OriginLate 19th century; earliest use found in The Botanical Gazette. |
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。