Paroxysmal (adjective)

Occurring in sudden, intense attacks or fits; characterized by paroxysms.

Origin:

From the greek word "paroxusmos" meaning "sudden attack or fit".

Examples:

1. Paroxysmal atrial fibrillation is a type of heart arrhythmia characterized by sudden, rapid heartbeats.
2. His paroxysmal coughing fits were caused by his lung condition.
3. She had paroxysmal attacks of pain in her back.
4. His seizures were paroxysmal and occurred without warning.
5. Paroxysmal nocturnal dyspnea is a medical condition characterized by sudden attacks of shortness of breath at night.