periphery

noun

pe·​riph·​ery pə-ˈri-f(ə-)rē How to pronounce periphery (audio)
plural peripheries
Synonyms of peripherynext
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.
Next, a Route 66 sign appears briefly along the periphery, surrounded by additional distracting road signs. Sandee Lamotte, CNN Money, 10 Feb. 2026 The military strife in the periphery is intentionally vague, designed simply to elicit a connection to the general geopolitical turmoil of 2026. Chris O'Falt, IndieWire, 10 Feb. 2026 For all the concerns about anti-ICE protests and anti-American sentiment disrupting the opening ceremony, real-world conflicts remained largely on the periphery. Pien Huang, NPR, 6 Feb. 2026 The neighborhood/area The estate sits at the periphery of Port Jervis, which is conveniently reachable from the city from NJ Transit via the Metro-North. Condé Nast, Condé Nast Traveler, 6 Feb. 2026 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 18 Feb. 2026.

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

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