capable of or tending to activate or to import body functions, and especially nervous system functions. Though sometimes the term is used as a synonym of excitant, its usual meaning is “invigorator.”
- Excitant: any class of substances that stimulates or augments the nervous activity, however, does not feed the body. Continuous use of stimulant herbs and products provokes tiredness. On the other hand, invigorating stimulants encourage a softer stimulus without undesirable side effects.