superseder
n.
supersede的变形
supersede
[,sju:pə'si:d]
vt.
代替，取代：
He was superseded by a young girl for the post.
一位年轻的姑娘取代了他的职位。
In the future, robots will supersede human beings for very heavy work.
今后，机器人必将取代人类的繁重劳动。
接替，充任；使让位：
Any one could supersede you