IPA: /ˈroʊtəˌteɪbəl/
KK: /ˈroʊtəˌteɪbəl/
Able to be turned around a central point or axis.
The chair is rotatable, allowing you to turn in any direction.
Rotatable → It is formed from "rota" (from Latin, meaning wheel) and "-able" (meaning capable of). The word "rotatable" means capable of being turned or rotated like a wheel.
Think of a 'wheel' ('rota') that can be 'turned' or 'rotated' — that's why something rotatable can move around.