paroxysm
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/ˈpærəksɪzəm/
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/ˈpærəksɪzəm/
A sudden, intense outburst of emotion or feeling.
She was overcome by a paroxysm of fear when she saw the spider.
A sudden, intense episode of a disease or condition, often causing physical discomfort.
He suffered a paroxysm of coughing that left him gasping for air.