1. excited or stimulated in advance; aroused beforehand
Usage: often used in medical or physiological contexts
2. (cardiology) relating to or denoting a condition in which part of the heart muscle is activated earlier than normal, as in Wolff-Parkinson-White syndrome
Usage: medical/technical term

Examples

• The preexcited audience waited eagerly for the concert to begin.
• His preexcited state made it difficult for him to focus on the task.
• The preexcited children could barely sit still before the field trip.
• Doctors detected a preexcited pattern on the patient's electrocardiogram.
• She arrived at the party in a preexcited mood, ready to celebrate.