Simple Definition of arc

: a line or shape that is curved like part of a circle

: a brightly glowing electric current that flows across an open space between two points (such as two electrodes)
Full Definition of arc
1 : the apparent path described above and below the horizon by a celestial body (as the sun)
2 a : something arched or curved b : a curved path <the arc of a fly ball>
3 : 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>
Examples of arc
He bent the twig into an arc.
The ball floated in a high arc.
Origin of arc
Middle English ark, from AngloFrench arc bow, from Latin arcus bow, arch, arc — more at arrow
First Known Use: 14th century
Other Electrical Engineering Terms
arc
Simple Definition of arc

: to move or lie in a curving path : to follow an arcshaped course

: to form an electric arc
Examples of arc
The arrow arced through the air.
A light arced across the sky.
The island chain arcs from north to south.
1893
First Known Use of arc
1893
Other Electrical Engineering Terms
arc
Definition of arc
: inverse 2 —used with the trigonometric functions and hyperbolic functions
Origin of arc
arc sine arc or angle (corresponding to the) sine (of so many degrees)
First Known Use: circa 1949
ARC
Definition of ARC
1 AIDSrelated complex
2 American Red Cross
Medical Dictionary
arc
playMedical Definition of arc
1: 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
Medical Definition of ARC
1AIDSrelated complex
2American Red Cross
Learn More about arc

Thesaurus: All synonyms and antonyms for "arc" Medical Dictionary: Definition of "arc" Spanish Central: Translation of "arc" Nglish: Translation of "arc" for Spanish speakers Britannica English: Translation of "arc" for Arabic speakers Britannica.com: Encyclopedia article about "arc"
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