A person who has ascites, a medical condition where fluid abnormally accumulates in the abdomen.
From ascites (Greek askites, from askos meaning 'wineskin'), plus the agent suffix -an. The condition was named after the wineskin-like distension of the belly.
Medieval doctors thought ascites patients had swollen bellies because their abdomens filled like wineskins with wine—that visual metaphor from Greek literally named the disease after a drinking vessel!
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