plural arcs
1
: the apparent path described above and below the horizon by a celestial body (such as the sun)
2
a
: something arched or curved
b
: a curved path
the arc of a fly ball
c
basketball
: three-point line
At week's end he was shooting 40.0% from behind the arc and averaging 19.6 points.—
Phil Taylor
Phil Taylor3
: a sustained luminous discharge of electricity across a gap in a circuit or between electrodes
also
: arc lamp
4
: a continuous portion (as of a circle or ellipse) of a curved line
5
: degree measurement on the circumference of a circle
—used especially in the phrase of arc
11 minutes 3 seconds of arc
6
: a continuous progression or line of development
a story's dramatic arc
1
: to form an electric arc (see arc entry 1 sense 3)
2
: to follow an arc-shaped course
The ball arced across the sky.
: to throw, hit, or kick (something, such as a ball) on a high, arc-shaped course
After driving into the long rough, he reached for a 4-wood and arced the ball just wide of the green.—Jeff Shain
Jeff Shain
mathematics
: inverse sense 2
—used with the trigonometric functions and hyperbolic functions
1
AIDS-related complex
2
American Red Cross
ARC
5 of 5abbreviation or noun
plural ARCs
: a copy of a printed work (such as a novel or textbook) sent as a promotion prior to the official release
First, I receive a box of paperback, smaller versions of my book called advance reader copies (ARCs).—Susan Van Kirk
Susan Van KirkWhile some houses like Chronicle Books continued to sell on the show floor, albeit at 50% discount, many publishers offered free ARCs …—Judith Rosen
Judith RosenExamples of arc in a Sentence
Noun
He bent the twig into an arc.
The ball floated in a high arc.
Verb
The arrow arced through the air.
A light arced across the sky.
The island chain arcs from north to south.
Recent Examples on the Web
Literary Hub, 27 Oct. 2025
Their script follows the real-life tragic arc of boxing legend Christy Martin, who suffered horrific acts of violence at the hands of her husband and trainer, the late James Martin.
—Tatiana Siegel, Variety, 27 Oct. 2025
Jeremy Repanich, Robb Report, 25 Oct. 2025
Starting from Fenway Park’s Pesky Pole, and arcing all the way around to the Fisk Pole, here’s who made the grade.
—Gabrielle Starr, Boston Herald, 15 Oct. 2025
See All Example Sentences for arc
Examples are automatically compiled from online sources to
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Noun
Earth’s magnetic field radiates from our planet’s poles, arcs deep into space, and creates a vast, magnetic bubble, known as the magnetosphere, that protects us from the solar wind.
—Literary Hub, 27 Oct. 2025
Their script follows the real-life tragic arc of boxing legend Christy Martin, who suffered horrific acts of violence at the hands of her husband and trainer, the late James Martin.
—Tatiana Siegel, Variety, 27 Oct. 2025
Verb
In the Wild Eyed Rose, the voluptuous tartness of the grenadine gets to arc across the whole palate, supported by the warm light malt of the Irish whiskey and given a malic kiss at the end by the lime juice.
—Jeremy Repanich, Robb Report, 25 Oct. 2025
Starting from Fenway Park’s Pesky Pole, and arcing all the way around to the Fisk Pole, here’s who made the grade.
—Gabrielle Starr, Boston Herald, 15 Oct. 2025
See All Example Sentences for arc
Cite this Entry
“Arc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arc. Accessed 31 Oct. 2025.
Copy CitationKids Definition
arc
1 of 2 noun1
a
: something curved
b
: a curved path
2
: a glowing flow of electricity across a gap in a circuit or between electrodes
3
: a continuous portion of a curved line (as part of the circumference of a circle)
arc
2 of 2 verb1
: to form an electric arc
2
: to follow an arc-shaped course
Medical Definition
arc
1 of 2 noun1
: an arched or curved anatomical part, distance, or pathway see reflex arc
2
: a sustained luminous discharge of electricity across a gap in a circuit or between electrodes
ARC
2 of 2 abbreviation1
AIDS-related complex
2
American Red Cross
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