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1. Related to the key issue but not of central importance
   "a peripheral interest"; "energy is far from a peripheral issue in the economy"; "peripheral issues"
    
2. On or near an edge or constituting an outer boundary; the outer area
   "Russia's peripheral provinces"; "peripheral suburbs"

1. (computing) electronic equipment external to the circuit board that contains the CPU of a computer
   "disk drives and printers are important peripherals";
   - computer peripheral, peripheral device

Derived forms: peripherals

See also: accidental, circumferential, encircling, fringy, incident, incidental, marginal, off-base, skirting

Type of: electronic equipment

Antonym: central

Part of: computer, computing device, computing machine, data processor, electronic computer, information processing system

Encyclopedia: Peripheral