arousal

noun4

1. •
   The act of arousing or the state of being aroused.
2. •
   Sexual arousal.

   • Some people get arousal from the depiction of feet.
3. •
   A physiological and psychological state of being awake or reactive to stimuli, including elevated heart rate and blood pressure and a condition of sensory alertness, mobility and readiness to respond.

   • Subjects report the physiological arousals induced by adrenaline and placebo differently. — 2003
4. •
   Arousal from sleep or hibernation.

   • The animal undergoes regular spells of arousal.