1. A teacher or teacher's assistant who demonstrates the principles that are being taught 
2. Someone who demonstrates an article to a prospective buyer
   - sales demonstrator 
3. Someone who participates in a public display of group feeling
   - protester, protestor

Derived forms: demonstrators

See also: demonstrate

Type of: crusader, instructor, meliorist, reformer, reformist, sales rep, sales representative, salesperson, social reformer, teacher

Encyclopedia: Demonstrator

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