1. The act of exciting, or the state of being roused into action, or of having increased action; impulsion; agitation; as, an excitement of the people.
2. That which excites or rouses; that which moves, stirs, or induces action; a motive. The cares and excitements of a season of transition and struggle. (Talfowrd)
3. (Science: physiology) a state of aroused or increased vital activity in an organism, or any of its organs or tissues.
Origin: cf. OF. Excitement, escitement.