Main Entry:

dem·on·stra·tion

Pronunciation:

\ˌde-mən-ˈstrā-shən\

Function:

noun

Date:

14th century

1: an act, process, or means of demonstrating to the intelligence: as a (1): conclusive evidence : proof (2): derivation 5 b: a showing of the merits of a product or service to a prospective consumer 2: an outward expression or display3: a show of armed force4: a public display of group feelings toward a person or cause

— dem·on·stra·tion·al \-shnəl, -shə-n^əl\ adjective