periphery

noun

pe·​riph·​ery pə-ˈri-f(ə-)rē How to pronounce periphery (audio)
plural peripheries
1
: the perimeter of a circle or other closed curve
also : the perimeter of a polygon
2
: the external boundary or surface of a body
3
a
: the outward bounds of something as distinguished from its internal regions or center : confines
b
: an area lying beyond the strict limits of a thing

Examples of periphery in a Sentence

the dogs are confined by an invisible electronic fence that runs along the periphery of the yard
Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Dibling and Barry spent the half on the periphery. Patrick Boyland, New York Times, 6 Oct. 2025 As the New York Knicks gear up for a potential NBA Finals bid in 2025-26, team president Leon Rose is tinkering around the periphery of his roster. Alex Kirschenbaum, MSNBC Newsweek, 6 Oct. 2025 When the photographer Mary Ellen Mark arrived in New York City, in 1966, one of her strategies for finding arresting images was to attend parades and other large gatherings, seeking out subjects not in the main flow of the action but on the periphery. Rebecca Mead, New Yorker, 5 Oct. 2025 In terms of how the oral medicine works, JOURNAVX provides relief by blocking pain signals found in the periphery, not in the brain, like traditional opioids. Essence, 25 Sep. 2025 See All Example Sentences for periphery

Word History

Etymology

Middle French peripherie, from Late Latin peripheria, from Greek periphereia, from peripherein to carry around, from peri- + pherein to carry — more at bear

First Known Use

circa 1568, in the meaning defined at sense 1

Time Traveler
The first known use of periphery was circa 1568

Browse Nearby Words

Cite this Entry

“Periphery.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/periphery. Accessed 8 Oct. 2025.

Kids Definition

periphery

noun
pe·​riph·​ery pə-ˈrif-(ə-)rē How to pronounce periphery (audio)
plural peripheries
1
: the boundary or surface of a body or figure
2
: the outer or outermost part

Medical Definition

periphery

noun
pe·​riph·​ery pə-ˈrif-(ə-)rē How to pronounce periphery (audio)
plural peripheries
1
: the outward bounds of something as distinguished from its internal regions or center
2
: the regions (as the sense organs, the muscles, or the viscera) in which nerves terminate

More from Merriam-Webster on periphery

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