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 RosenSynonyms
Examples 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
Danny Emerman, The Mercury News, 8 Nov. 2024
Randle’s vote for Harris is significant, especially given the arc of her lifetime.
—Melissa Noel, Essence, 5 Nov. 2024
Katy Waldman, The New Yorker, 30 Oct. 2024
The sun exhibits an 11-year cycle in its activity, which in 2014 was at its peak, when sunspots were common and these coronal loops arced above them.
—Phil Plait, Scientific American, 25 Oct. 2024
See all Example Sentences for arc 
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Noun
Before Friday night, the Warriors ranked first in 3-point defense, holding opponents to 29.5% from behind the arc.
—Danny Emerman, The Mercury News, 8 Nov. 2024
Randle’s vote for Harris is significant, especially given the arc of her lifetime.
—Melissa Noel, Essence, 5 Nov. 2024
Verb
Cranes bearing parallel bands of stadium lights arced over the performance area.
—Katy Waldman, The New Yorker, 30 Oct. 2024
The sun exhibits an 11-year cycle in its activity, which in 2014 was at its peak, when sunspots were common and these coronal loops arced above them.
—Phil Plait, Scientific American, 25 Oct. 2024
See all Example Sentences for arc
Dictionary Entries Near arc
Cite this Entry
“Arc.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/arc. Accessed 22 Nov. 2024.
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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