Main Entry: ¹pe·riph·er·al

Pronunciation: \pə-ˈri-f(ə-)rəl\

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