Definition of "agitator" in English

noun

1. One who agitates; one who stirs up or excites others, for example political reformers.

   • Near-synonyms: instigator; see also Thesaurus:troublemaker

2. An implement for shaking or mixing.

3. (historical) One of a body of men appointed by the army, in Oliver Cromwell's time, to look after their interests.