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

How things turned around Clashes broke out June 12 between some of the protesters and riot police, who fired rubber bullets and tear gas at demonstrators, and more than 80 people were injured. Tripti Lahiri, Quartz, "Hong Kong has pulled off an amazing win against a dire threat to its freedoms," 15 June 2019 The women demonstrators, many clad in purple, skipped work and instead took to the streets in cities across Switzerland to call for equal pay and equal rights. Jen Kirby, Vox, "Thousands of Swiss women walked out of their jobs to protest inequality," 14 June 2019 On June 3rd, however, security forces killed more than 100 peaceful demonstrators, including 19 children. The Economist, "A struggle for power in Sudan could lead to civil war," 14 June 2019 Peaceful demonstrators, mostly students, started occupying Beijing’s Tiananmen Square. Helen Raleigh, National Review, "Thirty Years after Tiananmen, China Is Still Unwilling to Tell the Truth," 4 June 2019 This technology demonstrator, called the XB-1, is scheduled to start flight tests this year at Mojave Air and Space Port in California, Boom says. Joe Pappalardo, Popular Mechanics, "Supersonic Airliners Are About to Take Off. Again.," 7 Jan. 2019 On the left bank, away from the main gathering places of the demonstrators, everything was pretty normal. Lynn Yaeger, Vogue, "In Paris, the Gilets Jaunes Protests Impact Holiday Shopping Season," 17 Dec. 2018 The Curie third stage also carried a drag sail technology demonstrator, named NABEO, which will attempt to passively de-orbit inactive small satellites and reduce space junk. Eric Berger, Ars Technica, "Rocket Lab now has a fully operational small satellite launcher," 12 Nov. 2018 Palestinian officials say demonstrators have been mostly unarmed. Dov Lieber, WSJ, "Egypt, U.N. Push Palestinian Rivals to Make Up," 27 July 2018

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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Statistics for demonstrator

Last Updated

19 Jun 2019

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Time Traveler for demonstrator

The first known use of demonstrator was in 1611

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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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