ট্র্যাকবল ইমোজির অর্থ

A trackball, as rotated to control a cursor on a computer. An alternative or supplement to a computer mouse or touchpad. Generally depicted as a cordless device with a blue or red ball in a cylindrical, black or gray socket.

Occasionally used for various content concerning gaming. Facebook’s design featurs a rectangular base, while Google’s design previously featured a cord.