Converted into or existing in a state where particles move and flow freely like a fluid, often by applying air or gas.
Past tense and past participle of 'fluidize.' This technical term became standard in chemical engineering and industrial chemistry in the mid-20th century.
A 'fluidized bed' is used to roast coffee beans evenly because the beans float and tumble in hot air like they're in water—creating perfect roasting. It's the same principle behind some modern water purification systems too!
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