peripheral

[puh-rif-er-uhl]
adjective Also, peripheric (for defs 1–3).
1.
pertaining to, situated in, or constituting the periphery: peripheral resistance on the outskirts of the battle area.
2.
concerned with relatively minor, irrelevant, or superficial aspects of the subject in question.
3.
Anatomy. near the surface or outside of; external.
4.
Computers. of or pertaining to a peripheral.
noun
5.
Computers. a device or unit that operates separately from the CPU but is connected to it, as a magnetic disk or tape unit or a printer.

Origin:
1800–10; 1965–70 for def 4; < Greek peripher(ḗs) (see periphery) + -al1

peripherally, adverb
unperipheral, adjective
unperipherally, adverb
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Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
peripheral (pəˈrɪfərəl)
 
adj
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
 
pe'ripherally
 
adv

Collins English Dictionary - Complete & Unabridged 10th Edition
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Etymonline
Word Origin & History

peripheral
1808, from Gk. peripheres (see periphery).
Online Etymology Dictionary, © 2010 Douglas Harper
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American Heritage
Medical Dictionary

peripheral pe·riph·er·al (pə-rĭf'ər-əl)
adj.

  1. Related to, located in, or constituting an outer boundary or periphery.

  2. Perceived or perceiving near the outer edges of the retina.

  3. Of or relating to the surface or outer part of a body or organ; external.

  4. Of, relating to, or being part of the peripheral nervous system.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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American Heritage
Science Dictionary
peripheral   (pə-rĭf'ər-əl)  Pronunciation Key 
Adjective  
  1. Anatomy Relating to or being the surface or outer part of a body or organ.

  2. Relating to or being part of the peripheral nervous system.


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.
The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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American Heritage
Cultural Dictionary

peripheral definition


Any part that is separate from a computer's CPU, such as a printer, a keyboard, or a monitor.

The American Heritage® New Dictionary of Cultural Literacy, Third Edition
Copyright © 2005 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
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Example sentences
Anyone who has been even peripherally involved with web site design knows how these stats work.
However, peripherally sault's statements sound plausible enough and being an opinion forum, it's open season on opinions.
Almost everything else has been balderdash or has used the war peripherally.
Writer describes the scenes on several talk shows where relatives and those peripherally involved in the case spoke.
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