demonstrator

noun

dem·​on·​stra·​tor ˈde-mən-ˌstrā-tər 

: one that demonstrates:

a

: a product (such as an automobile) used to demonstrate performance or merits to prospective buyers

b

: a person who engages in a public demonstration

Examples of demonstrator in a Sentence

Thousands of demonstrators marched through the streets.

Recent Examples on the Web

Pro-Palestinian demonstrators staged encampments at multiple universities denouncing Israel’s war in Gaza, with tense protests at institutions such as the University of Washington and Portland State University turning into violent altercations. —Emily Hallas, Washington Examiner - Political News and Conservative Analysis About Congress, the President, and the Federal Government, 30 Oct. 2024

After staying overnight at Milwaukee's historic Pfister Hotel, Harris began the day by privately speaking to students at the University of Wisconsin-Milwaukee, where a group of pro-Palestinian demonstrators gathered outside to protest her visit. —Laura Schulte, Journal Sentinel, 18 Oct. 2024

Keep your clothing simple, or add some cannabis accessories to the mix like these real-life demonstrators. —Brooke Staggs, The Mercury News, 15 Oct. 2024

But about 3,000 demonstrators, including tribal members, protested on the day of Trump’s action. —James Rainey, Los Angeles Times, 11 Oct. 2024

Word History

Etymology

demonstrate + -or entry 1

First Known Use

1593, in the meaning defined above

Phrases Containing demonstrator

• counter-demonstrator

Kids Definition

demonstrator

noun

dem·​on·​stra·​tor ˈdem-ən-ˌstrāt-ər 

1

: a person who makes or takes part in a demonstration

2

: a manufactured article (as an automobile) used for purposes of demonstration

Medical Definition

demonstrator

noun

dem·​on·​stra·​tor ˈdem-ən-ˌstrāt-ər 

: a teacher or teacher's assistant who demonstrates principles or theories studied (as by dissection, experiment, or chemical preparation)