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Your peripheral vision is the outer area of your field of vision, where you can still detect movement and shapes. It can be very valuable when, for instance, you're driving into Chicago at rush hour, especially when switching lanes. When people call an issue in a discussion peripheral, they mean that it's not of primary importance, and they're probably suggesting that everyone get back to the main topic. Peripheral is now also a noun: computer peripherals are the added components—printers, webcams, microphones, etc.—that increase a computer's capacities.
Examples of peripheral in a Sentence
Cite this Entry
“Peripheral.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/peripheral. Accessed 13 Jan. 2026.
Kids Definition
peripheral
1 of 2 adjectiveperipheral
2 of 2 nounMedical Definition
peripheral
adjective
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