endospore

名词 endospore:

1. a small asexual spore that develops inside the cell of some bacteria and algae

en.do.spore

n.（名词）
A small asexual spore, as that formed by some bacteria.
内生孢子：一种小的无性孢子，如那些由某些细菌所形成的孢子
The inner layer of the wall of a spore.
孢子内壁：孢子壁的内层