meaning of demonstration
1. The act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt; indubitable evidence, to the senses or reason.
2. An expression, as of the feelings, by outward signs; a manifestation; a show.
3. The exhibition and explanation of a dissection or other anatomical preparation.
4. (Mil. ) a decisive exhibition of force, or a movement indicating an attack.
5. The act of proving by the syllogistic process, or the proof itself.
6. 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.
7. a show or display; the act of presenting something to sight or view; "the presentation of new data"; "he gave the customer a
">demonstration"