- 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 - demonstrator, sales demonstrator - someone who demonstrates an article to a prospective buyer
--2 is a kind of salesperson
- 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; picketDerived form: verb demonstrate4