Lewis Short
dēmonstrātĭo (noun F) : id.
* A showing or pointing out, as with the finger, an indication, description, designation.
* In gen. (good prose): gestus universam rem et sententiam non demonstratione sed significatione declarans,Cic. de Or. 3, 59: conversam habere,Cic. Verr. 2, 4, 59: hujus generis demonstratio est, et doctrina ipsa vulgaris,id. de Or. 3, 55, 209: temporum horum,Plin. 4, 13, 27, § 93.—In plur., Cic. Fin. 4, 5, 13.
* In partic.
* In rhetor.
* The demonstrative or laudatory kind of oratory, i. q. demonstrativum genus, Cic. Inv. 1, 9, 12; Quint. 3, 4, 13; 11, 3, 115.
* In jurisprud., a clear and complete declaration of one's will, Dig. 35, tit. 1: de condicionibus et demonstrationibus,Gai. ib. 17; ib. 30, 1, 74.
* The bounding or limiting of a place, Dig. 8, 1, 13; 10, 1, 12.
Charlton T. Lewis, Charles Short, A Latin Dictionary