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Related to peripherally: peripherally inserted central venous catheter
1. Related to, located in, or constituting an outer boundary or periphery.
2. Perceived or perceiving near the outer edges of the retina: peripheral vision.
a. Of the surface or outer part of a body or organ; external.
b. Of, relating to, or being part of the peripheral nervous system.
4. Of minor relevance or importance.
An auxiliary device, such as a printer, modem, or storage system, that works in conjunction with a computer.