agitator

US /ˈædʒ.ə.teɪ.t̬ɚ/
UK /ˈædʒ.ə.teɪ.t̬ɚ/
"agitator" picture
1.

a person who urges others to protest or rebel

:
The political agitator was arrested for inciting a riot.
He was known as a tireless agitator for workers' rights.
2.

a device for stirring or mixing substances

:
The washing machine has an agitator that moves clothes around.
A magnetic agitator is used in laboratories to mix liquids.