American Dictionary

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Definition peripheral in American English

peripheral adjective

adjective
/pəˈrɪf(ə)rəl/
1

connected with something but not a necessary or important part of it

Example

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

Example

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

2

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

Synonyms and related words
Definition peripheral in American English