n.
Pronunciation: p ə - ' ri-f( ə -)r ə l
Function: adjective
Date: 1808
1 : of, relating to, involving, or forming a periphery or surface part
2 a : 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>
4 : AUXILIARY , SUPPLEMENTARY < peripheral equipment> also : of or relating to computer peripherals
– pe · riph · er · al · ly adverb