demonstrator

noun

dem·​on·​stra·​tor ˈde-mən-ˌstrā-tər How to pronounce demonstrator (audio)
: 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
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Union demonstrators demanding passage of the bill greeted lawmakers outside the Capitol in the morning, circling a corner of the parking lot used by the governor and top legislative leaders. Mark Pazniokas, Hartford Courant, 29 May 2025 It's been years in the making, with New Atlas having covered Horizon's unique eVTOL design as early as 2021 and when the company was still talking about building a 1:6 scale Cavorite X5 demonstrator. Joe Salas may 17, New Atlas, 17 May 2025 The prior behavior of some of those demonstrators — including loud protests and the display of materials directed toward trial participants — frames a potential conflict between the state court’s effort to conduct a fair trial and demonstrators’ right to express their views. Rick Sobey, Boston Herald, 12 May 2025 On the night of May 1, 2024, a group of pro-Israel demonstrators attacked, triggering mayhem. James Queally, Los Angeles Times, 12 May 2025 See All Example Sentences for demonstrator

Word History

Etymology

demonstrate + -or entry 1

First Known Use

1593, in the meaning defined above

Time Traveler
The first known use of demonstrator was in 1593

Browse Nearby Words

Cite this Entry

“Demonstrator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/demonstrator. Accessed 3 Jun. 2025.

Kids Definition

demonstrator

noun
dem·​on·​stra·​tor ˈdem-ən-ˌstrāt-ər How to pronounce demonstrator (audio)
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 How to pronounce demonstrator (audio)
: a teacher or teacher's assistant who demonstrates principles or theories studied (as by dissection, experiment, or chemical preparation)

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