excitation

/ˌɛksaɪˈteɪʃən/
noun
  1. A state of being very excited or enthusiastic.
    • The children's excitation was obvious when they saw the presents.
    • She felt a rush of excitation before her first skydive.
    • The crowd's excitation grew as the band took the stage.
  2. The act of stimulating or causing a reaction, especially in a biological or physical system.
    • Scientists studied the excitation of atoms using a laser.
    • The nerve's excitation triggered a muscle contraction.
    • The drug caused excitation of the heart muscle.
Antonyms
What does "excitation" mean? | whatsthatwordmean | whatsthatwordmean