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demonstration

[dem-uh n-strey-shuh n] /ˌdɛm ənˈstreɪ ʃən/
noun
1.
the act or circumstance of proving or being proved conclusively, as by reasoning or a show of evidence:
a belief incapable of demonstration.
2.
something serving as proof or supporting evidence:
They sent a check as a demonstration of their concern.
3.
a description or explanation, as of a process, illustrated by examples, specimens, or the like:
a demonstration of methods of refining ore.
4.
the act of exhibiting the operation or use of a device, machine, process, product, or the like, as to a prospective buyer.
5.
an exhibition, as of feeling; display; manifestation:
His demonstration of affection was embarrassing.
6.
a public exhibition of the attitude of a group of persons toward a controversial issue, or other matter, made by picketing, parading, etc.
7.
a show of military force or of offensive operations made to deceive an enemy.
8.
Mathematics. a logical presentation of the way in which given assumptions imply a certain result; proof.
Origin
1325-1375
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
Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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British Dictionary definitions for demonstrationist

demonstration

/ˌdɛmənˈstreɪʃən/
noun
1.
the act of demonstrating
2.
proof or evidence leading to proof
3.
an explanation, display, illustration, or experiment showing how something works
4.
a manifestation of grievances, support, or protest by public rallies, parades, etc
5.
a manifestation of emotion
6.
a show of military force or preparedness
7.
(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 demonstrationist
demonstration
late 14c., from L. demonstrationem, from demonstrare, from de- "entirely" + monstrare "to point out, show," from monstrum "divine omen, wonder." Meaning "public show of feeling," usually with a mass meeting and a procession, is from 1839.
Online Etymology Dictionary, © 2010 Douglas Harper
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