'Excitation' definitions:

Definition of 'excitation'

From: WordNet
noun
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" [syn: excitement, excitation, inflammation, fervor, fervour]
noun
The neural or electrical arousal of an organ or muscle or gland [syn: excitation, innervation, irritation]
noun
Something that agitates and arouses; "he looked forward to the excitements of the day" [syn: excitation, excitement]

Definition of 'Excitation'

From: GCIDE
  • Excitation \Ex`ci*ta"tion\n. [L. excitatio: cf. F. excitation.]
  • 1. The act of exciting or putting in motion; the act of rousing up or awakening. --Bacon. [1913 Webster]
  • 2. (Physiol.) The act of producing excitement (stimulation); also, the excitement produced. [1913 Webster]