demonstrator

[dem-uhn-strey-ter]

noun

1. a person or thing that demonstrates.

2. Also a person who takes part in a public demonstration, as by marching or picketing.

3. a person who explains orteaches by practical demonstrations.

4. a person who exhibits the use and application of (a product, service, etc.) to a prospective customer.

5. the product, device, machine, etc., actually used in demonstrations to purchasers or prospective customers.

   They sold the demonstrator at half price.

demonstrator

/ ˈdɛmənˌstreɪtə /

noun

1. a person who demonstrates equipment, machines, products, etc

2. a person who takes part in a public demonstration

3. a piece of merchandise, such as a car that one test-drives, used to display merits or performance to prospective buyers

Other Word Forms

• counterdemonstrator noun

Word History and Origins

Origin of demonstrator¹

1605–15; < Latin dēmonstrātor, equivalent to dēmonstrā ( re ) ( demonstrate ) + -tor -tor

Example Sentences

Israeli soldiers then walked down from inside the camp and began to disperse the crowd, briefly detaining two demonstrators and a cameraman for Jordanian television channel Roya.

Read more on Barron's

Earlier last week, demonstrators - some of whom were from Indigenous groups - carrying signs that read "our forests are not for sale" broke into the summit and tussled with security.

Read more on BBC

The 78-year-old tried to quell protests with a heavy hand and characterized the demonstrators as criminals, terrorists and traitors.

Read more on The Wall Street Journal

On Saturday demonstrators dismantled parts of a barrier protecting the National Palace, where Sheinbaum lives.

Read more on BBC

Chanting and singing "free the Amazon", demonstrators in host city Belém have been carrying three giant coffins reading Oil, Coal and Gas flanked by two grim reapers.

Read more on BBC

Related Words

• marcher 
• radical 
• rioter www.thesaurus.com
• striker