Definition of plume noun from the Oxford Advanced Learner's Dictionary



    BrE BrE//pluːm//
    ; NAmE NAmE//pluːm//
    Waste and pollution
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  1. 1a cloud of something that rises and curves upwards in the air a plume of smoke A radioactive plume could reach the city within hours. A great plume of dust and ash rose from the volcano. The waves pounded the rocks, throwing up white plumes of spray. See related entries: Waste and pollution
  2. 2a large feather a black hat with an ostrich plume
  3. 3a group of feathers or long thin pieces of material tied together and often used as a decoration The red plume on the horse’s head was nodding to the rhythm of its steps.
  4. see also nom de plume
    Word Originlate Middle English: from Old French, from Latin pluma ‘down’.
See the Oxford Advanced American Dictionary entry: plume

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