excitations

Noun

excitation (countable and uncountable, plural excitations)

1. The act of exciting or putting in motion; the act of rousing up or awakening.
   • Generator excitation is obtained by a combination of the separately-excited and self-excited fields, and the output is controlled by a resistance in the separate field circuit adjusted by the load regulator under the control of the engine governor.1961 October, “The first 1,250 h.p. Birmingham/Sulzer Type 2 diesels enter service”, in Trains Illustrated, page 607
2. The act of producing excitement (stimulation); also, the excitement produced.
   • Baiae: An ancient Roman pleasure resort [...]. It was the focal point of all kinds fo erotic experiments, unbridled debauchery, amorous intrigues and excitations, sexual encounters and aberrations.1961, Harry E. Wedeck, Dictionary of Aphrodisiacs, New York: The Citadel Press, page 39
3. The activity produced in an organ, tissue, or part, such as a nerve cell, as a result of stimulation.
4. A transition of a nucleus, atom or molecule to an excited state by the absorption of a quantum of energy; the opposite of relaxation.