plume

Definitions

General English

General Science

  • noun a tall cloud of smoke or gas escaping from a factory chimney
  • noun a tall cloud of smoke or gas escaping from a volcano
  • noun a cloud of powdered snow blowing from a mountain crest
  • noun a large feather

Astronomy

  • Spiky plasma column seen near the Sun’s pole at periods of high solar activity, also known as polar plumes. The plumes’ shape is probably controlled by the Sun’s magnetic field.

Construction

  • The effluent mixture of heated air and water vapor discharged from a cooling tower.
  • An identifiable and definable stream of pollutants in an otherwise clean volume of air or water.

Military

  • noun a tall decoration of coloured feathers or animal hair, which is attached to a ceremonial headdress
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