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Noun demonstrator has 3 senses
  1. demonstrator - a teacher or teacher's assistant who demonstrates the principles that are being taught
    --1 is a kind of
    teacher, instructor
    Derived form: verb demonstrate1
  2. demonstrator, sales demonstrator - someone who demonstrates an article to a prospective buyer
    --2 is a kind of salesperson
  3. demonstrator, protester - someone who participates in a public display of group feeling
    --3 is a kind of reformer, reformist, crusader, meliorist
    --3 has particulars: counterdemonstrator; picket
    Derived form: verb demonstrate4
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