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peripheral

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adjective pe·riph·er·al \pə-ˈri-f(ə-)rəl\

Definition of peripheral

  1. 1 :  of, relating to, involving, or forming a periphery or surface part

  2. 2a :  of, relating to, affecting, or being part of the peripheral nervous system peripheral nerves peripheral neuritisb :  of, relating to, or being blood in the systemic circulation peripheral lymphocytes

  3. 3 :  of, relating to, or being the outer part of the field of vision good peripheral vision

  4. 4 :  auxiliary, supplementary peripheral equipment; also :  of or relating to computer peripherals

peripherally

adverb

Examples of peripheral in a Sentence

  1. If we focus too much on peripheral issues, we will lose sight of the goal.

  2. peripheral devices such as modems and scanners

  3. He saw in his peripheral vision that a car was trying to pass him.

Recent Examples of peripheral from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'peripheral'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

Did You Know?

Your peripheral vision is the outer area of your field of vision, where you can still detect movement and shapes. It can be very valuable when, for instance, you're driving into Chicago at rush hour, especially when switching lanes. When people call an issue in a discussion peripheral, they mean that it's not of primary importance, and they're probably suggesting that everyone get back to the main topic. Peripheral is now also a noun: computer peripherals are the added components—printers, webcams, microphones, etc.—that increase a computer's capacities.

First Known Use of peripheral

1808


2

peripheral

noun pe·riph·er·al

Definition of peripheral

  1. :  a device connected to a computer to provide communication (such as input and output) or auxiliary functions (such as additional storage)

Recent Examples of peripheral from the Web

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'peripheral'. Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

First Known Use of peripheral

1966

Other Computer-Related Terms


PERIPHERAL Defined for English Language Learners

peripheral

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adjective

Definition of peripheral for English Language Learners

  • : not relating to the main or most important part

  • computers : connected to a computer but not an essential part of it

  • : of or relating to the area that is to the side of the area you are looking at

peripheral

noun

Definition of peripheral for English Language Learners

  • computers : a piece of equipment (such as a printer, speaker, etc.) that is connected to a computer but is not an essential part of it


Medical Dictionary

peripheral

play
adjective pe·riph·er·al \pə-ˈrif-(ə-)rəl\

Medical Definition of peripheral

  1. 1:  of, relating to, involving, forming, or located near a periphery or surface part (as of the body)

  2. 2:  of, relating to, affecting, or being part of the peripheral nervous system peripheral nerves

  3. 3:  of, relating to, or being the outer part of the visual field good peripheral vision

  4. 4:  of, relating to, or being blood in the systemic circulation peripheral lymphocytes peripheral blood

peripherally

\-ē\play adverb


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