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peripheral - definition and synonyms

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adjective     peripheral pronunciation in British English
/pəˈrɪf(ə)rəl/
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  1. 1
    connected with something but not a necessary or important part of it

    The talks made progress on peripheral issues, but failed to resolve the main dispute between the two sides.

    peripheral to:

    We made some discoveries about the immune system that were peripheral to our search for a vaccine.

  2. 2
    peripheral areas of a town or country are far from the central area

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