demonstrator

[ dem-uh n-strey-ter ]

/ ˈdɛm ənˌstreɪ tər /

a person or thing that demonstrates.

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

a person who explains orteaches by practical demonstrations.

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

the product, device, machine, etc., actually used in demonstrations to purchasers or prospective customers: They sold the demonstrator at half price.

Origin of demonstrator

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

coun·ter·dem·on·stra·tor, noun

Yusuf Yerkel, an advisor to Erdogan, was caught on camera as he kicked a demonstrator in Soma.

After 100s of Miners Die, Turkey’s Prime Minister Says “This Happens” |Thomas Seibert |May 15, 2014 |DAILY BEAST
While I was in the arena, a demonstrator who'd been shot in the shoulder lay on his side for about an hour on the arena floor.

Egypt’s Government Thugs Beat Me Up at the Rabaa Sit-In |Mike Giglio |August 14, 2013 |DAILY BEAST
One demonstrator gave a dark prediction about what might lie ahead: “Blood.”

Turkish Protesters Are Entrenched as Protests Continue |Mike Giglio |June 6, 2013 |DAILY BEAST
Occasionally they captured a demonstrator and dragged him back into their ranks.

Return to Military Rule Sits Uneasily with Egyptians |Mike Giglio |January 31, 2013 |DAILY BEAST

In one incident near the city of Nablus, Israeli soldiers opened fire and killed a demonstrator, according to Israeli media.

Will U.N. Push Lead to Uprising? |Dan Ephron |September 24, 2011 |DAILY BEAST
In those two words Hannah announced eloquently her utter condemnation of the demonstrator of the Wizard.

The Dwelling Place of Light, Complete |Winston Churchill
He went out with a demonstrator and the car made good the dealer's word.

We Can't Have Everything |Rupert Hughes
A demonstrator of anatomy—and he could soothe a nerve as well as expose a muscle.

The Jucklins |Opie Read
The demonstrator was Mlle. Biheron, who is said to have had a veritable passion for both anatomy and surgery.

Woman in Science |John Augustine Zahm
As a demonstrator of the obvious he has probably no equal even among the under-secretaries.

Phyllis of Philistia |Frank Frankfort Moore

demonstrator

/ (ˈdɛmənˌstreɪtə) /

a person who demonstrates equipment, machines, products, etc

a person who takes part in a public demonstration

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