Hvad er peripheral? Hvad er peripheral? Related to, located in, or constituting an outer boundary or periphery.Perceived or perceiving near the outer edges of the retina: peripheral vision. Anatomy Of the surface or outer part of a body or organ; external.Anatomy Of, relating to, or being part of the peripheral nervous system.Of minor relevance or importance.Auxiliary.Computer Science An auxiliary device, such as a printer, modem, or storage system, that works in conjunction with a computer.