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[dem-uh n-strey-shuh n] /ˌdɛm ənˈstreɪ ʃən/
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.
1325-75; Middle English demonstracioun < Latin dēmonstrātiōn- (stem of dēmonstrātiō, equivalent to dēmonstrāt(us) (see demonstrate) + -iōn- -ion
Related forms
demonstrational, adjective
demonstrationist, noun
counterdemonstration, noun
predemonstration, noun
redemonstration, noun
subdemonstration, noun
superdemonstration, noun
undemonstrational, adjective Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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Examples for demonstrations
  • We're celebrating the best of western cooking with celebrity chefs and cooking demonstrations.
  • So textbooks have to be revised, and so must online and simulated demonstrations.
  • Two out of three respondents said they had not followed the demonstrations closely.
  • Students covered protests and demonstrations that could have been dangerous but were crucial for readers worldwide.
  • Thus some pretty strong candidates were doomed from the moment they began their teaching demonstrations, and never even knew it.
  • Incorporated in my lectures and demonstrations are the whys and the hows of a software function.
  • He has given demonstrations of his playful hookup to middle- and high-school students.
  • If there are public demonstrations against them, that must reflect outside agitators.
  • Those will of course be modestly fun demonstrations of physical prowess.
  • Disparate demonstrations paint this new picture of wireless communications.
British Dictionary definitions for demonstrations


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
Derived Forms
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
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Word Origin and History for demonstrations



late 14c., "proof that something is true," from Old French demonstration or directly from Latin demonstrationem (nominative demonstratio), noun of action from past participle stem of demonstrare "to point out, indicate, demonstrate," figuratively, "to prove, establish," from de- "entirely" (see de-) + monstrare "to point out, show," from monstrum "divine omen, wonder" (see monster). Meaning "public show of feeling," usually with a mass meeting and a procession, is from 1839. Related: Demonstrational.

Online Etymology Dictionary, © 2010 Douglas Harper
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