| Noun | 1. | peripheral - (computer science) electronic equipment connected by cable to the CPU of a computer; "disk drives and printers are important peripherals"computer, computing device, computing machine, data processor, electronic computer, information processing system - a machine for performing calculations automatically data input device, input device - a device that can be used to insert data into a computer or other computational device electronic equipment - equipment that involves the controlled conduction of electrons (especially in a gas or vacuum or semiconductor) output device - electronic or electromechanical equipment connected to a computer and used to transfer data out of the computer in the form of text, images, sounds, or other media printer - (computer science) an output device that prints the results of data processing computer science, computing - the branch of engineering science that studies (with the aid of computers) computable processes and structures |
| Adj. | 1. | peripheral - on or near an edge or constituting an outer boundary; the outer area; "Russia's peripheral provinces"; "peripheral suburbs" central - in or near a center or constituting a center; the inner area; "a central position" |
| 2. | peripheral - 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" incidental, incident - (sometimes followed by `to') minor or casual or subordinate in significance or nature or occurring as a chance concomitant or consequence; "incidental expenses"; "the road will bring other incidental advantages"; "extra duties incidental to the job"; "labor problems incidental to a rapid expansion"; "confusion incidental to a quick change" |