noun the act of proving by the syllogistic process, or the proof itself.
2. demonstration ·noun an expression, as of the feelings, by outward signs; a manifestation; a show.
3. demonstration ·noun the exhibition and explanation of a dissection or other anatomical preparation.
4. demonstration ·noun (mil.) a decisive exhibition of force, or a movement indicating an attack.
5. demonstration ·noun the act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt; indubitable evidence, to the senses or reason.
6. demonstration ·noun 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.