|1.||not relating to the most important part of something; incidental, minor, or superficial|
|2.||of, relating to, or of the nature of a periphery|
|3.||anatomy of, relating to, or situated near the surface of the body: a peripheral nerve|
peripheral pe·riph·er·al (pə-rĭf'ər-əl)
Related to, located in, or constituting an outer boundary or periphery.
Perceived or perceiving near the outer edges of the retina.
Of or relating to the surface or outer part of a body or organ; external.
Of, relating to, or being part of the peripheral nervous system.
|peripheral (pə-rĭf'ər-əl) Pronunciation Key
Noun Computer Science An auxiliary device, such as a printer or modem, distinct from a computer's central processing unit and working memory, and often connected externally.
Any part that is separate from a computer's CPU, such as a printer, a keyboard, or a monitor.