A device or apparatus that causes or hastens evaporation, converting liquid into vapor; commonly used in industrial processes, refrigeration, and separation techniques.
From 'evaporate' plus the agent suffix '-or' (meaning 'one that does'), creating a noun for a device. This follows the standard English pattern of forming agent nouns (like 'calculator' or 'refrigerator').
Evaporators are workhorses in industry—they concentrate milk into condensed milk, separate salt from seawater, and remove water from industrial waste, yet most people never think about them!
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