refers to devices or components that are supplementary or auxiliary to a main system.

refers to the outer boundaries or edges of an area.

बाह्य सीमा

English Usage: The hospital is located on the peripheral of the city.

Hindi Usage: अस्पताल शहर के बाह्य सीमा पर स्थित है।

relating to or situated on the edge or periphery of something.

not central or of main importance.

अप्रमुख

English Usage: The discussion was peripheral to the main issue.

Hindi Usage: चर्चा मुख्य मुद्दे के प्रति अप्रमुख थी।