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
The regime ruthlessly cracked down on hundreds of thousands of demonstrators who emerged in the streets in late December and early January.
—
Cora Engelbrecht, New Yorker, 3 Apr. 2026
N'dea Yancey-Bragg Outside the Supreme Court, dozens of demonstrators and spectators are gathered ahead of oral arguments.
—Maureen Groppe, USA Today, 1 Apr. 2026
Footage then shows the van drive off, nearly striking two demonstrators.
—Stephen Swanson, CBS News, 1 Apr. 2026
After the assasination of Martin Luther King on April 4, 1968, his successor, Ralph Albernathy rallied some 500 demonstrators, mostly Black, to protest the Apollo 11 moon mission's launch at the gates of NASA's Kennedy Space Center in Florida.
—Tariq Malik, Space.com, 31 Mar. 2026
See All Example Sentences for demonstrator
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Cora Engelbrecht, New Yorker, 3 Apr. 2026
N'dea Yancey-Bragg Outside the Supreme Court, dozens of demonstrators and spectators are gathered ahead of oral arguments.
—Maureen Groppe, USA Today, 1 Apr. 2026
Footage then shows the van drive off, nearly striking two demonstrators.
—Stephen Swanson, CBS News, 1 Apr. 2026
After the assasination of Martin Luther King on April 4, 1968, his successor, Ralph Albernathy rallied some 500 demonstrators, mostly Black, to protest the Apollo 11 moon mission's launch at the gates of NASA's Kennedy Space Center in Florida.
—Tariq Malik, Space.com, 31 Mar. 2026
See All Example Sentences for demonstrator
Cite this Entry
“Demonstrator.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/demonstrator. Accessed 5 Apr. 2026.
Copy CitationKids 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)
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