demonstrative

Etymology

From Middle English demonstratif, from Middle French démonstratif; equivalent to demonstrate + -ive.

adj

1. that serves to demonstrate, show or prove
2. given to open displays of emotion
   demonstrative eloquence 1783, Hugh Blair, Lectures on Rhetoric and Belles Lettres
   He had rather a contempt for demonstrative people, arising from his medical insight into the consequences to health of uncontrolled feeling. 1865, Elizabeth Cleghorn Gaskell, Wives and Daughters, Chapter III
3. (grammar) that specifies the thing or person referred to

noun

1. (grammar) A demonstrative word
   1. A demonstrative adjective.
   2. A demonstrative pronoun.