Defn: See Demonstrator.
DEMONSTRATION
Dem`on*stra"tion, n. Etym: [L. demonstratio: cf. F. démonstration.]
1. The act of demonstrating; an exhibition; proof; especially, proof beyond the possibility of doubt; indubitable evidence, to the senses or reason. Those intervening ideas which serve to show the agreement of any two others are called "proofs;" and where agreement or disagreement is by this means plainly and clearly perceived, it is called demonstration. Locke.
2. An expression, as of the feelings, by outward signs; a
manifestation; a show.
Did your letters pierce the queen to any demonstration of grief Shak.
Loyal demonstrations toward the prince. Prescott.
3. (Anat.)
Defn: 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. (Logic)
Defn: The act of proving by the syllogistic process, or the proof itself.
6. (Math.)