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(1)   Something that agitates and arouses
"He looked forward to the excitements of the day"
(2)   The neural or electrical arousal of an organ or muscle or gland
(3)   The state of being emotionally aroused and worked up
"His face was flushed with excitement and his hands trembled"
"He tried to calm those who were in a state of extreme inflammation"


  1. The act of exciting or putting in motion; the act of rousing up or awakening.
  2. The act of producing excitement (stimulation); also, the excitement produced.
  3. Physiology. The activity produced in an organ, tissue, or part, such as a nerve cell, as a result of stimulation
  4. The change in state as an excited state is formed by the absorption of a quantum of energy