the act or circumstance of proving or being proved conclusively, as by reasoning or a show of evidence: a belief incapable of demonstration.
something serving as proof or supporting evidence: They sent a check as a demonstration of their concern.
a description or explanation, as of a process, illustrated by examples, specimens, or the like: a demonstration of methods of refining ore.
the act of exhibiting the operation or use of a device, machine, process, product, or the like, as to a prospective buyer.
an exhibition, as of feeling; display; manifestation: His demonstration of affection was embarrassing.
a public exhibition of the attitude of a group of persons toward a controversial issue, or other matter, made by picketing, parading, etc.
a show of military force or of offensive operations made to deceive an enemy.
Mathematics. a logical presentation of the way in which given assumptions imply a certain result; proof.
- dem·on·stra·tion·al, adjective
- dem·on·stra·tion·ist, noun
- coun·ter·dem·on·stra·tion, noun
- pre·dem·on·stra·tion, noun
- re·dem·on·stra·tion, noun
- sub·dem·on·stra·tion, noun
- su·per·dem·on·stra·tion, noun
- un·dem·on·stra·tion·al, adjective
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
How to use demonstration in a sentence
ClearFlame is also conducting a demonstration on a Cummins engine platform supported by funding from the Department of Energy.ClearFlame Engine Technologies takes aim at cleaning up diesel engines | Kirsten Korosec | September 17, 2020 | TechCrunch
Next month, the company will unveil a demonstration aircraft called the XB-1, a new supersonic-capable plane that is one-third the size of what they hope their commercial airliner will be.Air Force transport jets for VIPs could have a supersonic future | Rob Verger | September 10, 2020 | Popular-Science
Federal officials have arrested more than 300 people since the demonstrations began.A summer of protests exposed deep demands for change—and entrenched obstacles | kdunn6 | September 7, 2020 | Fortune
There’s a lot of demonstrations that were happening in LA for years that I didn’t know about until all of this.After Playing So Many Roles, Who Is the Real Tatiana Maslany? | Eromo Egbejule | September 4, 2020 | Ozy
It was the beginning of a week of unrest and protests that mirrored destructive demonstrations seen earlier this summer following police violence.Kenosha’s looting is a symptom of a decrepit democracy | Aaron Ross Coleman | September 4, 2020 | Vox
The reviews in themselves constitute a demonstration of why the regime restricts the Internet.Inside the ‘Surprisingly Great’ North Korean Hacker Hotel | Michael Daly | December 20, 2014 | THE DAILY BEAST
As Sarah and her sister and mother headed for the warmth of home, the demonstration continued.
Not that the demonstration had anything to do with this couple, whom Sarah seems to see as a fairy tale come to life.
There is an extreme demonstration of this divide in the nation.
For anyone who cared to watch, the event and its denouement provided a graphic demonstration that the Iron Curtain was crumbling.
But for the delinquency of his son, she had ocular demonstration; and her indignation was hardly to be repressed.The Pastor's Fire-side Vol. 3 of 4 | Jane Porter
Already its demonstration had tried her temper, but to-night, for the first time, she felt her whole being set on edge by it.Bella Donna | Robert Hichens
He determined therefore to make a threatening demonstration by day and slip past it by night.Napoleon's Marshals | R. P. Dunn-Pattison
When they form short chains, demonstration of the capsule is necessary to distinguish them from streptococci.A Manual of Clinical Diagnosis | James Campbell Todd
This truth is as old as Homer, and its proofs are as capable of demonstration as a mathematical axiom.The Book of Anecdotes and Budget of Fun; | Various
British Dictionary definitions for demonstration
the act of demonstrating
proof or evidence leading to proof
an explanation, display, illustration, or experiment showing how something works
a manifestation of grievances, support, or protest by public rallies, parades, etc
a manifestation of emotion
a show of military force or preparedness
maths a logical presentation of the assumptions and equations used in solving a problem or proving a theorem
- demonstrational, adjective
- demonstrationist, noun
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012