Meaning & Definition of Peripheral in English

1. (computer science) electronic equipment connected by cable to the cpu of a computer

• "Disk drives and printers are important peripherals"

1. On or near an edge or constituting an outer boundary

• The outer area

• "Russia's peripheral provinces"

• "Peripheral suburbs"

2. 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"