Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “peripheral”

peripheral

adjective  /pəˈrɪf·ər·əl/ us  
not central or of main importance: First of all, we had to find out who the thief was – getting the money back was a peripheral issue. Peripheral vision is what you can see to the sides of what you are looking at.

peripheral

noun [C]  /pəˈrɪf·ər·əl/ us  
a piece of equipment, such as a printer, that can be connected to a computer
(Definition of peripheral from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of peripheral?
Add Cambridge dictionaries to your browser to your website

More American English definitions for “peripheral”

Definitions of “peripheral” in other dictionaries

Word of the Day

stampede

When animals or people stampede, they all move quickly in the same direction, often because they are frightened.

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More