Definition of "thumbstick" [thumbstick]

• A small joystick that can be operated with the thumb. (noun)

Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License

• "Every tiny movement of a thumbstick translates to a larger movement ingame."
• "For now, we're concerned with making him respond to the left thumbstick, which is part of the gamepad."
• "Cons: Very small game library for a 5-year-old device; thumbstick controls can feel awkward; classic model is bulky for a handheld. iPod Touch"