IPA: /dʒɛˈstɪkjʊlətɪv/
KK: /dʒɛˈstɪkjʊlətɪv/
Relating to or characterized by the use of gestures, especially in communication.
She was very gesticulative while explaining her story, using her hands to emphasize her points.
Gesticulative → It is formed from "gesticulare" (meaning to gesture) and the suffix "-ive" (meaning having the nature of). The word describes something that has the nature of making gestures, often to emphasize or convey meaning.
Think of someone who is 'gesturing' ('gesticulare') to express themselves — that's why 'gesticulative' means having the nature of making gestures.