请输入您要查询的英文单词:

 

单词 primary endosperm nucleus
释义

Definition of primary endosperm nucleus in English:

primary endosperm nucleus

noun
Botany
  • 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.

Origin

Late 19th century; earliest use found in The Botanical Gazette.

Definition of primary endosperm nucleus in US English:

primary endosperm nucleus

noun
Botany
  • 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.

Origin

Late 19th century; earliest use found in The Botanical Gazette.

随便看

 

英汉双解词典包含464360条英汉词条,基本涵盖了全部常用单词的翻译及用法,是英语学习的有利工具。

 

Copyright © 2004-2022 Newdu.com All Rights Reserved
更新时间:2025/2/7 9:39:14