Pronunciation: (i-mō'shun),[key] —n. 1. an affective state of consciousness in which joy, sorrow, fear, hate, or the like, is experienced, as distinguished from cognitive and volitional states of consciousness.
2. any of the feelings of joy, sorrow, fear, hate, love, etc.
3. any strong agitation of the feelings actuated by experiencing love, hate, fear, etc., and usually accompanied by certain physiological changes, as increased heartbeat or respiration, and often overt manifestation, as crying or shaking.
4. an instance of this.
5. something that causes such a reaction: the powerful emotion of a great symphony.