Definition of paroxysmal in US English:

paroxysmal

adjective

  • See paroxysm

    • ‘Six of the 11 patients had coarse, bibasilar rales, and two reported orthopnea and paroxysmal nocturnal dyspnea.’
    • ‘Despite a long history of use in the treatment of paroxysmal atrial fibrillation, the efficacy of cardiac glycosides has not been established.’
    • ‘Our patient had paroxysmal coughing as a result of bronchitis and sustained rib fractures that resulted in flail chest and rupture of the diaphragm, which required surgical intervention.’
    • ‘Despite compliance with his medications, he noticed progressive weakness, fluid retention, frequent attacks of paroxysmal nocturnal dyspnea, and an inability to perform minor tasks around the house.’
    • ‘The most common causes of this condition are benign paroxysmal positional vertigo, acute vestibular neuronitis or labyrinthitis, Meniere's disease, migraine, and anxiety disorders.’

Pronunciation

paroxysmal

/ˌpɛrəkˈsɪzm(ə)l//ˌperəkˈsizm(ə)l/