Peripheral

(noun.) (computer science) electronic equipment connected by cable to the CPU of a computer; 'disk drives and printers are important peripherals'.

(adj.) on or near an edge or constituting an outer boundary; the outer area; 'Russia's peripheral provinces'; 'peripheral suburbs' .

(adj.) 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' .

德怀特手打

• With the increased diameter and peripheral speed of the circular saw, however, a grave difficulty presented itself. Edward W. Byrn. 十九世纪发明进展.

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