excitation

Plural: excitations

Noun

• the state of being emotionally aroused and worked up
• the neural or electrical arousal of an organ or muscle or gland
• something that agitates and arouses
• The act of exciting or putting in motion; the act of rousing up or awakening.
• The act of producing excitement (stimulation); also, the excitement produced.
• The activity produced in an organ, tissue, or part, such as a nerve cell, as a result of stimulation.
• A transition of a nucleus, atom or molecule to an excited state by the absorption of a quantum of energy; the opposite of relaxation.

Synonyms

excitement, fervor, fervour, inflammation, innervation, irritation