demon'strationist

World English Dictionary

demonstration (ˌdɛmənˈstreɪʃən)

—n
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

demon'strational

—*adj*

demon'strationist

—n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Demon'strationist is always a great word to know.

So is ninnyhammer. Does it mean: