[dem-uh n-strey-ter]


a person or thing that demonstrates.
Also demonstrant. a person who takes part in a public demonstration, as by marching or picketing.
a person who explains orteaches by practical demonstrations.
a person who exhibits the use and application of (a product, service, etc.) to a prospective customer.
the product, device, machine, etc., actually used in demonstrations to purchasers or prospective customers: They sold the demonstrator at half price.

Nearby words

  1. demonstrate,
  2. demonstration,
  3. demonstration model,
  4. demonstrative,
  5. demonstrative pronouns,
  6. demonym,
  7. demoralize,
  8. demoralizing,
  9. demos,
  10. demoscene

Origin of demonstrator

1605–15; < Latin dēmonstrātor, equivalent to dēmonstrā(re) (see demonstrate) + -tor -tor

Related formscoun·ter·dem·on·stra·tor, noun Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for demonstrator

British Dictionary definitions for demonstrator



a person who demonstrates equipment, machines, products, etc
a person who takes part in a public demonstration
a piece of merchandise, such as a car that one test-drives, used to display merits or performance to prospective buyers

Word Origin and History for demonstrator




Online Etymology Dictionary, © 2010 Douglas Harper