dem·​on·​stra·​tor | \ ˈde-mən-ˌstrā-tər How to pronounce demonstrator (audio) \

Definition of demonstrator

: 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 But the recent descent into clashes after three months of peaceful protests has also triggered introspection and divisions among the demonstrators about their next moves. Washington Post, "Bloodied but determined, Lebanese protesters take stock," 4 Feb. 2020 Thousands of demonstrators in cities across Iran faced tear gas and accused security forces of firing live ammunition as police aggressively countered intensifying protests prompted by the shoot-down of a Ukrainian commercial jet. John Bacon, USA TODAY, "'Our enemy is right here!' Videos show Iran protesters fleeing tear gas, live bullets as protests grow," 13 Jan. 2020 Security forces fired tear gas, rubber bullets and eventually live ammunition to disperse demonstrators in Tehran. New York Times, "Iran Cracks Down as Protests Over Downing of Airliner Grow," 12 Jan. 2020 At the Iraqi consulate in Southfield in Tuesday afternoon, police kept watch as demonstrators in favor of the U.S. strikes walked outside. Niraj Warikoo, Detroit Free Press, "Metro Detroiters with roots in the Middle East call for peace," 8 Jan. 2020 In recent days, abductions and assassinations of high-profile civil activists have stoked paranoia among demonstrators., "Baghdad mob kills teen gunman and strings up his corpse - The Boston Globe," 13 Dec. 2019 In recent days, abductions and assassinations of high-profile civil activists have stoked paranoia among demonstrators. Samya Kullab And Murtada Faraj,, "Baghdad mob strings up corpse of teen gunman who killed six, officials say," 12 Dec. 2019 The radiant green bursts aren’t just radiant green bursts but in fact demonstrators using laser pointers to disarm police drones. Wired, "Depth of Field: The Searing Colors of Santiago's Revolution," 14 Nov. 2019 Police fired tear gas at demonstrators in Hong Kong on Saturday following an attack on China's official Xinhua news agency and local metro stations, as the anti-government movement nears the five-month mark. Fox News, "Hong Kong Protesters met with tear gas after attacking Chinese news agency offices," 3 Nov. 2019

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'demonstrator.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

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First Known Use of demonstrator

1611, in the meaning defined above

History and Etymology for demonstrator

demonstrate + -or entry 1

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Time Traveler for demonstrator

Time Traveler

The first known use of demonstrator was in 1611

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Statistics for demonstrator

Last Updated

13 Feb 2020

Cite this Entry

“Demonstrator.” Dictionary, Merriam-Webster, Accessed 16 Feb. 2020.

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More Definitions for demonstrator


How to pronounce demonstrator (audio)

English Language Learners Definition of demonstrator

: a person who is part of an event in which people gather together in order to show that they support or oppose something or someone : a person who participates in a demonstration
: a person who shows other people how something is used or done


dem·​on·​stra·​tor | \ ˈde-mən-ˌstrā-tər How to pronounce demonstrator (audio) \

Kids Definition of demonstrator

1 : a person who makes or takes part in a demonstration
2 : a manufactured article (as an automobile) used for demonstration


dem·​on·​stra·​tor | \ ˈdem-ən-ˌstrāt-ər How to pronounce demonstrator (audio) \

Medical Definition of demonstrator

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

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More from Merriam-Webster on demonstrator

Rhyming Dictionary: Words that rhyme with demonstrator

Spanish Central: Translation of demonstrator

Nglish: Translation of demonstrator for Spanish Speakers

Britannica English: Translation of demonstrator for Arabic Speakers

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