- Geometry. any unbroken part of the circumference of a circle or other curved line.
- Also called electric arc. Electricity. a luminous bridge formed in a gap between two electrodes.Compare spark1(def 2).
- Astronomy. the part of a circle representing the apparent course of a heavenly body.
- anything bow-shaped.
- to form an electric arc.
- to move in a curve suggestive of an arc.
Origin of arc
- Pathology. AIDS-related complex.
- Associate of the Royal College of Science.
- Associate of the Royal College of Surgeons.
Examples from the Web for arcs
Contemporary Examples of arcs
Those episodes were great but they lacked some of the great things that happen when you let arcs grow.‘Michael J. Fox Show’ Creator: We’re Not Canceled…Yet
February 6, 2014
Historical Examples of arcs
Again and again the cold scene was lighted up by the arcs of the aurora.From Pole to Pole
Sven Anders Hedin
Secondly, "an ellipse or oval" is composed of four arcs of circles.A Budget of Paradoxes, Volume II (of II)
Augustus de Morgan
That contained under three arcs of great circles of a sphere.The Sailor's Word-Book
William Henry Smyth
They are made in sets of arcs of concentric circles (see fig. 80, A).Bookbinding, and the Care of Books
Arcs of circles are then drawn to touch these three circles.An Introduction to Machine Drawing and Design
David Allan Low
- Associate of the Royal College of Science
- something curved in shape
- part of an unbroken curved line
- a luminous discharge that occurs when an electric current flows between two electrodes or any other two surfaces separated by a small gap and a high potential difference
- astronomy a circular section of the apparent path of a celestial body
- maths a section of a curve, graph, or geometric figure
- (intr) to form an arc
- maths specifying an inverse trigonometric function: usually written arcsin, arctan, arcsec, etc, or sometimes sin –1, tan –1, sec –1, etc
Word Origin for arc
- AIDS-related complex: an early condition in which a person infected with the AIDS virus may suffer from such mild symptoms as loss of weight, fever, etc
Word Origin and History for arcs
late 14c., originally in reference to the sun's apparent motion in the sky, from Old French arc "bow, arch, vault" (12c.), from Latin arcus "a bow, arch," from PIE root *arku- "bowed, curved" (cf. Gothic arhvazna "arrow," Old English earh, Old Norse ör; also, via notion of "supple, flexible," Greek arkeuthos, Latvian ercis "juniper," Russian rakita, Czech rokyta, Serbo-Croatian rakita "brittle willow"). Electrical sense is from 1821.
1893, in the electrical sense, from arc (n.). Meaning "to move in an arc" attested by 1954. Related: Arced; arcing.
- A curved line or segment of a circle.
- AIDS-related complex
- A segment of a circle.
- See electric arc.