• Demonstration. Neapolitan
    Demonstration. Neapolitan
  • WordNet 3.6
    • n demonstration a show or display; the act of presenting something to sight or view "the presentation of new data","he gave the customer a demonstration"
    • n demonstration a show of military force or preparedness "he confused the enemy with feints and demonstrations"
    • n demonstration a public display of group feelings (usually of a political nature) "there were violent demonstrations against the war"
    • n demonstration proof by a process of argument or a series of proposition proving an asserted conclusion
    • n demonstration a visual presentation showing how something works "the lecture was accompanied by dramatic demonstrations","the lecturer shot off a pistol as a demonstration of the startle response"
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Additional illustrations & photos:


Webster's Revised Unabridged Dictionary
  • Interesting fact: Anti-American demonstrators protesting in Bangladesh after the September 11, 2001 terrorist attacks carried posters of Osama bin Laden sitting alongside Bert, a beloved Sesame Street Muppet character
    • Demonstration (Math) A course of reasoning showing that a certain result is a necessary consequence of assumed premises; -- these premises being definitions, axioms, and previously established propositions.
    • Demonstration a public gathering of people to express some sentiment or feelings by explicit means, such as picketing, parading, carrying signs or shouting, usually in favor of or opposed to some action of government or of a business.
    • Demonstration An expression, as of the feelings, by outward signs; a manifestation; a show. See also sense 7 for a more specific related meaning. "Did your letters pierce the queen to any demonstration of grief?""Loyal demonstrations toward the prince."
    • Demonstration Mil.) a decisive exhibition of force, or a movement indicating an attack.
    • Demonstration The act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt; indubitable evidence, to the senses or reason. "Those intervening ideas which serve to show the agreement of any two others are called “proofs;” and where agreement or disagreement is by this means plainly and clearly perceived, it is called demonstration ."
    • Demonstration (Logic) The act of proving by the syllogistic process, or the proof itself.
    • Demonstration the act of showing how a certain device, machine or product operates, or how a procedure is performed; -- usually done for the purpose of inducing prospective customers to buy a product; as, a demonstration of the simple operation of a microwave oven.
    • Demonstration (Anat) The exhibition and explanation of a dissection or other anatomical preparation.
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Century Dictionary and Cyclopedia
  • Interesting fact: Babe Ruth was able to throw two baseballs in such a way that the balls remained parallel to each other all the way from his hand to the catcher's glove. Ruth was famous for this stunt and would demonstrate it on request.
    • n demonstration The act of pointing out or exhibiting; an exhibition; a manifestation; a show: as, a demonstration of friendship or sympathy.
    • n demonstration The exhibition and explanation of examples in teaching an art or a science, especially anatomy.
    • n demonstration Milit., an exhibition of warlike intentions; a warlike attitude or movement; specifically, a military operation of any kind which may be performed for the purpose of deceiving the enemy respecting the measures which it is intended to employ against him.
    • n demonstration A public exhibition, by a number of persons, of sympathy with some political or other cause, as in a mass-meeting or a procession.
    • n demonstration Proof, either a process of stating in an orderly manner indubitable propositions which evidently cannot be true without the truth of the conclusion so proved, or the propositions so Stated. Properly, demonstration is restricted to perfect proof, especially mathematical proof. (See the extract from Burgersdicius, below.) According to the Aristotelian doctrine, which has greatly influenced the use of the word, demonstration must be drawn from principles not only self-evident, but also underived from any higher principles; and the conclusion must not only be shown to be true, but also to be a mere special case of the truth of one or more of the principles from which it is derived. It was supposed that this was the character of the best mathematical proofs; but mathematical proof consists in constructing a diagram or formula according to certain rules which prescribe that certain relations shall exist between the parts of that diagram, and then in showing by observation (directly or indirectly) that certain additional relations exist between those parts; and no important mathematical proof is of the nature of the Aristotelian demonstration. The word has consequently acquired two significations: first, its original sense of a perfect mathematical proof; second, the sense of a proof drawn from principles, as in the Aristotelian theory. There is also a third signification, according to which a demonstration is any proof which leaves no room for reasonable doubt, such as Kepler's proof that the orbit of Mars is an ellipse. Writers who adopt the Aristotelian view hold that the reductio ad absurdum and the Fermatian mode of proof, though entirely convincing, are not perfect demonstrations.
    • n demonstration In Roman law, the formal statement of the plaintiff's claim in presenting his case to the court: somewhat analogous to the ‘declaration’ of the common law.
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Chambers's Twentieth Century Dictionary
  • Interesting fact: Cornelius van Drebel, a Dutch physician, built and successfully demonstrated the first submarine in 1620. It was a wooden framework covered with greased leather. The propulsion was provided by oars worked from the inside. It was tested in the Thames River in London.
    • ns Demonstration a pointing out: proof beyond doubt: expression of the feelings by outward signs: expression of sympathy with political or social opinions, with a man or body of men, by a mass-meeting, a procession, &c.: show: a movement of troops or ships to exhibit military intention, or in war to deceive the enemy
    • ***


  • Source Unknown
    Source Unknown
    “Business conventions are important because they demonstrate how many people a company can operate without.”
  • L. Ron Hubbard
    L. Ron Hubbard
    “The differences between a competent person and an incompetent person are demonstrated in his environment (surroundings).”
  • Henry Miller
    “Man has demonstrated that he is master of everything -- except his own nature.”
  • Stan Mooneyham
    Stan Mooneyham
    “Love talked about is easily turned aside, but love demonstrated is irresistible.”
  • Cynthia Ozick
    Cynthia Ozick
    “The usefulness of madmen is famous: they demonstrate society's logic flagrantly carried out down to its last scrimshaw scrap.”
  • John Ruskin
    “The work of science is to substitute facts for appearances, and demonstrations for impressions.”


Webster's Revised Unabridged Dictionary
L. demonstratio,: cf. F. démonstration,
Chambers's Twentieth Century Dictionary
L. demonstrāre, -ātumde, inten., and monstrāre, to show.


In literature:

Almost every great popular demonstration has been hitherto attended all the world over by a certain amount of lawlessness.
"Freedom's Battle" by Mahatma Gandhi
He thought this could be demonstrated, if the occasion were a proper one.
"The Anti-Slavery Examiner, Part 3 of 4" by American Anti-Slavery Society
Great demonstrations for and against it were held in advance.
"John Redmond's Last Years" by Stephen Gwynn
The depressed nineties demonstrated conclusively that a new era had arrived.
"A History of Trade Unionism in the United States" by Selig Perlman
At all events, the existence of these savage metaphysics is a demonstrated fact.
"Modern Mythology" by Andrew Lang
It was a demonstration of Free Soilers.
"Children of the Market Place" by Edgar Lee Masters
In being hearing something she was demonstrating that hearing that thing was an outrageous thing.
"Matisse Picasso and Gertrude Stein" by Gertrude Stein
It was only a demonstration, a reconnaissance.
"A Handbook of the Boer War" by Gale and Polden, Limited
The price of provisions fluctuated dreadfully, demonstrating a deficiency very different from the worst failures of the present moment.
"The Works of the Right Honourable Edmund Burke, Vol. V. (of 12)" by Edmund Burke
"Zoonomia, Vol. I" by Erasmus Darwin

In poetry:

Mr. Bernard Shaw
Was just setting out for the war,
When he heard it was a dangerous trade
And demonstrably underpaid.
"Clerihew – Shaw" by Edmund Clerihew Bentley
He loved to stand upon his head
To demonstrate he was not dead.
Ah, if his poems misbehave
'Tis only to defy the grave.
"In Memoriam: Four Poets" by Robert Francis
Yes, every poet is a fool;
By demonstration, Ned can show it:
Happy could Ned's inverted rule
Prove every fool to be a poet.
"Epigram - Yes, Every Poet Is A Fool" by Matthew Prior
One day they took us budding M. D.s
To one of those institutes
Where they demonstrate every new disease
By means of bisected brutes.
"Rags" by Edmund Vance Cooke
"Then I shall demonstrate to you,
According to the rules of WHATELY,
That what is true of all, is true
Of each, considered separately."
"Sir Macklin" by William Schwenck Gilbert
Now in his outward life we plainly find,
Goodness demonstrated of ev'ry kind;
What he was born for, that he show'd throughout,
It was the business that he went about:
Love, kindness, and compassion, to display
Towards ev'ry object coming in his way.
"On Church Communion - Part II." by John Byrom

In news:

Not only were church members demonstrating how to make apple butter on Saturday, they were also selling it.
An expert on the set even demonstrated by brewing a pot of coffee and chopping up an onion.
If you wanted a list of 20 novels to demonstrate the variety and quality of contemporary fiction in English, it would be hard to do much better than the Orange Prize longlist, announced earlier this month.
The Waukesha County Sheriff's Department's new $260,000 armored vehicle went into action before a planned demonstration.
The forum will feature a full day of speakers, workshops and demonstrations.
LAS VEGAS — Aspera ( will be at NAB, demonstrating what is now possible in the cloud for digital media companies.
Demonstrators walk through the make-shift tent city as part of the Occupy DC demonstration at Freedom Plaza, in Washington on Oct 11, 2011.
David Lassman / The Post-Standard Say Yes to Education students demonstrate skills they learned during the Say Yes summer program.
Musicians, artists, and food trucks crowded the lawn around the Paige Museum's free concert and art demonstrations.
Local woman demonstrates how non-smokers are being diagnosed with lung cancer every day.
J&J Industries worked with the company to demonstrate the feasibility of removing chemical additives in large-scale carpet manufacturing so that facilities can reuse the water.
When last we left the saga of Steve Nettemeyer, the Roanoke County man had vowed to continue his weekly demonstrations across the street from the Firestone Service Center at Southwest Plaza.
Jacques Torres demonstrates chocolate made from scratch and offers wine pairings for his sweet creations.
Garfield demonstrate at a public meeting held by the Garfield city council, board of education and officials from the Environmental Protection Agency on September 10, 2012.
Twin demonstrations planned for Tuesday on courthouse lawn.

In science:

The Fibonacci cube algorithm has been demonstrated to produce a γ -uniform random variable in O(log2 |G|) group operations.
Towards a practical, theoretically sound algorithm for random generation in finite groups
If the plot of D2 has a plateau, then it is likely that the process demonstrates chaotic dynamics. A value of D2 at the plateau is taken as an estimate of the correlation dimension of the attractor underlying the data.
Nonlinear analysis of EAS clusters
Still, in the vicinity of some EAS clusters we have found samples that demonstrate signs of chaotic dynamics.
Nonlinear analysis of EAS clusters
Thus we conclude that the sample with the cluster demonstrates signs of chaotic dynamics with the (fractal) dimension of an attractor approximately equal to 2.5.
Nonlinear analysis of EAS clusters
The authors of these investigations presented several dozens of events that demonstrate chaotic dynamics.
Nonlinear analysis of EAS clusters