American English

Definition of peripheral adjective from the Oxford Advanced American Dictionary



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  1. 1(formal) not as important as the main aim, part, etc. of something peripheral information matters of peripheral concern peripheral to something Fund-raising is peripheral to their main activities.
  2. 2(technology) connected with the outer edge of a particular area the peripheral nervous system peripheral vision
  3. 3(computing) (of equipment) connected to a computer a peripheral device
  4. peripherally
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    adverb They were only peripherally involved in the affair.
See the Oxford Advanced Learner's Dictionary entry: peripheral

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