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

Councilwoman Susan Zhuang was taken into custody during the 6 a.m. protest that drew about 200 demonstrators to 86th St. near 25th Ave., cops said. —Thomas Tracy, New York Daily News, 17 July 2024

At one point a group of demonstrators got in an argument with counter-protesters who denounced LGBTQ+ rights, Muslims, Black Lives Matter and women. —Jake Offenhartz, Sophia Tareen, TIME, 16 July 2024

Among them will be members of organizations that plan to participate as demonstrators at the RNC. —Jolan Kruse, Journal Sentinel, 12 July 2024

Like those machines, this electric demonstrator also looks a little out of the ordinary for a race car. —Jonathan M. Gitlin, Ars Technica, 8 July 2024

Word History

Etymology

demonstrate + -or entry 1

First Known Use

1611, 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)