English
demonstration
Etymology

From Middle English demonstracioun, from Old French demonstration, from Latin demonstrationem, from demonstrare ("show or explain"), from de- ("of or concerning") + monstrare ("show").

Morphologically demonstrate + -ion

Pronunciation
  • IPA: /dɛmənˈstɹeɪʃən/
Noun

demonstration

  1. The act of demonstrating; showing or explaining something.
    1. (prison slang) A prisoner's act of beating up another prisoner. (clarification of this definition is needed)
  2. An event at which something will be demonstrated.
    I have to give a demonstration to the class tomorrow, and I'm ill-prepared.
  3. Expression of one's feelings by outward signs.
  4. A public display of group opinion, such as a protest march.
  5. A show of military force.
  6. (mathematics, philosophy) A proof.
    • a. 1697, John Aubrey, Brief Lives, s.v. Thomas Hobbes:
      He read the proposition. […] So he reads the demonstration of it, which referred him back to such a proposition,; which proposition he read.
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