1. the state of being awake, alert, or stimulated
2. the act of stirring up or exciting interest, emotion, or activity
3. sexual excitement or stimulation
Usage: clinical or educational contexts

Examples

• The loud noise caused immediate arousal from sleep.
• Caffeine increases mental arousal and alertness.
• The speech led to the arousal of strong emotions in the crowd.
• The arousal of public interest in the issue was unexpected.
• Sleep disorders can affect normal patterns of arousal.
• The medication can cause drowsiness or arousal depending on the dose.
• Researchers studied arousal levels in response to different stimuli.