IPA: /pəˈrɒksɪzməl/
KK: /pæˈrɑksɪzməl/
Relating to sudden and intense outbursts or attacks, often used to describe symptoms that occur in sudden bursts.
The patient experienced paroxysmal episodes of coughing that startled everyone in the room.
Paroxysmal → It is formed from "paroxysmus" (from Greek "paroxysmos", meaning a sudden attack or increase) and the suffix "-al" (meaning pertaining to). The word "paroxysmal" refers to something that is related to or characterized by sudden outbursts or attacks.
Think of a sudden 'attack' or 'increase' ('paroxysmus') that happens 'pertaining to' a specific condition — that's what paroxysmal means.