noun dem·on·stra·tion \ ˌde-mən-ˈstrā-shən \
Updated on: 8 Apr 2018

Definition of demonstration

1 : an act, process, or means of demonstrating to the intelligence
  • a demonstration of how to prune a tree
: such as
a (1) : conclusive evidence : proof
  • a demonstration of her guilt
(2) mathematics : derivation 5
b : a showing of the merits of a product or service to a prospective consumer
  • a vacuum cleaner demonstration
2 : an outward expression or display
  • a demonstration of compassion
3 : a show of armed force
4 : a public display of group feelings toward a person or cause
  • peaceful demonstrations against the government
  • anti-war demonstrations


play \-shnəl, -shə-nᵊl\ adjective

Examples of demonstration in a Sentence

  1. I went to a sculpture demonstration last weekend.

  2. One of the instructors gave a demonstration of how to prune a tree.

  3. Would you mind giving us a demonstration so that we can see how the machine works?

  4. He brought along a copy of the software for demonstration.

  5. Students took part in several nonviolent demonstrations against the government.

  6. The latest tests are a clear demonstration that the vaccine works.

  7. Many people sent cards and flowers in demonstration of their sympathy.

Recent Examples of demonstration from the Web

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

Origin and Etymology of demonstration

Middle English demonstracioun, borrowed from Anglo-French & Latin; Anglo-French demonstration, demustracioun, borrowed from Latin dēmonstrātiōn-, dēmonstrātiō "action of pointing out, description, explanation" (Late Latin, "deduction, proof"), from dēmonstrāre "to indicate, describe, show" + -tiōn-, -tiō, suffix of verbal action — more at demonstrate

demonstration Synonyms

DEMONSTRATION Defined for English Language Learners


Definition of demonstration for English Language Learners

  • : an act of showing someone how something is used or done

  • : an event in which people gather together in order to show that they support or oppose something or someone

  • : an act of showing or proving something

DEMONSTRATION Defined for Kids


noun dem·on·stra·tion \ ˌde-mən-ˈstrā-shən \

Definition of demonstration for Students

1 : an outward expression (as a show of feelings)
  • a demonstration of affection
2 : an act or a means of showing
  • a cooking demonstration
3 : a showing or using of an article for sale to display its good points
4 : a parade or a gathering to show public feeling

Medical Dictionary


noun dem·on·stra·tion \ ˌdem-ən-ˈstrā-shən \

medical Definition of demonstration

: an act, process, or means of demonstrating to the intelligence; especially : a proof by experiment
  • a demonstration of the neutralization of an acid by a base

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to lower or disgrace the reputation of

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