Definition of peripheral
(Entry 1 of 2)
1
: of, relating to, involving, or forming a periphery or surface part
2a
: of, relating to, affecting, or being part of the peripheral nervous system
peripheral nerves peripheral neuritis
b
: of, relating to, or being blood in the systemic circulation
peripheral lymphocytes
3
: of, relating to, or being the outer part of the field of vision
good peripheral vision
peripheral
nounDefinition of peripheral (Entry 2 of 2)
: a device connected to a computer to provide communication (such as input and output) or auxiliary functions (such as additional storage)
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Merriam-Webster unabridged
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Time Traveler for peripheral
The first known use of peripheral was in 1808
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