peripherals
nounUK /pəˈrɪf.ər.əlz/
US /pəˈrɪf.ɚ.əlz/
Peripherals are extra parts you plug into a computer, like a mouse or keyboard.
She bought new peripherals for her computer, including a mouse and a keyboard.
OTHER MEANINGS
2. Things that are on the edge of an area or activity rather than at its center.
The small shops on the peripherals of the city get fewer visitors.
3. Outer parts of a body or object.
The doctor checked the peripherals of the injured arm.
4. Minor or less important matters connected to a main subject.
The meeting focused on the main plan and only briefly touched on peripherals.