noun an informer; a makebate.
2. promoter ·noun one who excites; as, a promoter of sedition.
3. promoter ·noun one who, or that which, forwards, advances, or promotes; an encourager; as, a promoter of charity or philosophy.
4. promoter ·noun specifically, one who sets on foot, and takes the preliminary steps in, a scheme for the organization of a corporation, a joint-stock company, or the like.