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

Thousands of police officers had gathered Friday at the president’s residence, forming a perimeter around the pro-Yoon demonstrators who waved South Korean and American flags and chanted slogans. —Kim Tong-Hyung, Los Angeles Times, 3 Jan. 2025

What was supposed to be a protest in which thousands marched from campus to tear down a fence the university had erected to keep out trespassers turned into a heated battle between demonstrators and hundreds of officers, ending with many injured and one dead. —Sierra Lopez, The Mercury News, 31 Dec. 2024

Thousands of demonstrators took to the streets around Syria including in the capital Damascus demanding protection for religious minorities following the Christmas tree burning, which took place in the city of Hama around 200 km north of Damascus last night. —Max Goldbart, Deadline, 24 Dec. 2024

Here are some of the lasting images from the year that was: Pro-Palestinian demonstrators took to the streets on New Year's Day as fireworks welcomed in 2024. —Mike Deehan, Axios, 23 Dec. 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)