A building or place, especially one that is overcrowded or unsanitary, where diseases like fever spread easily among people.
From 'fever' plus 'trap,' compounds forming a metaphorical image of a location that 'traps' fever or disease. This term likely emerged in 19th or early 20th-century urban contexts, describing tenements and poor housing.
Words like 'fevertrap' reveal Victorian and Industrial-era anxieties about urban disease—they needed words to describe how crowded, poorly-ventilated buildings became disease incubators. This shows how vocabulary emerges from real public health crises!
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