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

plume

noun
 
/pluːm/
 
/pluːm/
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  1. a 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.
    Topics The environmentc2
  2. a large feather
    • a black hat with an ostrich plume
  3. a 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 plume in the Oxford Advanced American Dictionary

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