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plume science definition
- A feather, especially a large one.
- A body of magma that rises from the Earth's mantle into the crust.
♦ If a plume rises to the Earth's surface, it erupts as lava.
♦ If it remains below the Earth's surface, it eventually solidifies into a body of rock known as a pluton. - An area in air, water, soil, or rock containing pollutants released from a single source. A plume often spreads in the environment due to the action of wind, currents, or gravity.
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