AGITATOR
agitator, fomenter
(noun) one who agitates; a political troublemaker
Source: WordNet® 3.1
Noun
agitator (plural agitators)
One who agitates; one who stirs up or excites others, for example political reformers.
An implement for shaking or mixing.
(historical) One of a body of men appointed by the army, in Cromwell's time, to look after their interests; called also adjutators.
Source: Wiktionary
Ag"i*ta`tor, n. Etym: [L.]
1. One who agitates; one who stirs up or excites others; as,
political reformers and agitators.
2. (Eng. Hist.)
Definition: One of a body of men appointed by the army, in Cromwell's time,
to look after their interests; -- called also adjutators. Clarendon.
3. An implement for shaking or mixing.
Source: Webster’s Unabridged Dictionary 1913 Edition