peripheral

US /pəˈrɪf.ɚ.əl/
UK /pəˈrɪf.ɚ.əl/
"peripheral" picture
1.

relating to or situated on the edge or periphery of something

:
•
The company's main focus is on software, with hardware being a peripheral concern.
•
He suffered from peripheral nerve damage.
:
outerexternalmarginalsecondaryancillary
:
centralcoremain
1.

a device that is connected to a computer but is not an essential part of it, such as a printer or scanner

:
•
I need to buy a new peripheral for my computer, maybe a better mouse.
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Printers, scanners, and external hard drives are common computer peripherals.
:
accessoryadd-oncomponentdevice
:
CPUprocessormotherboard
:
peripheral nervous system