Arc
[ɑːk] or [ɑrk]
Definition
(n.) A portion of a curved line; as, the arc of a circle or of an ellipse.
(n.) A curvature in the shape of a circular arc or an arch; as, the colored arc (the rainbow); the arc of Hadley's quadrant.
(n.) An arch.
(n.) The apparent arc described, above or below the horizon, by the sun or other celestial body. The diurnal arc is described during the daytime, the nocturnal arc during the night.
Typed by Elinor
Synonyms and Synonymous
n. (Geom.) Arch, part of a circumference.
Inputed by Leslie
Definition
n. a segment of a circle or other curve.
Typed by Hiram
Examples
- Because I saw it only looking out from under the blinds of a window in the house which stood on the corner where the arc light was. Hemingway, Ernest. For Whom The Bell Tolls.
- And he was hoisted, first by the mechanism which was used to hoist the arc light but this broke-- Hemingway, Ernest. For Whom The Bell Tolls.
- Until the beginning of 1882 there were only a few arc-lighting stations in existence for the limited distribution of current. Frank Lewis Dyer. Edison, His Life and Inventions.
- The two pointed pieces of hard conducting carbon used for the separated terminals constitute the voltaic arc light--a light only excelled in intense brilliancy by the sun itself. William Henry Doolittle. Inventions in the Century.
- One early station in New York for arc lighting was an old soap-works whose well-soaked floors did not need much additional grease to render them choice fuel for the inevitable flames. Frank Lewis Dyer. Edison, His Life and Inventions.
- It consisted of a graduated arc of soli d polished brass five inches broad, two inches thick, and with a radius of about six and three quarters feet. Walter Libby. An Introduction to the History of Science.
- Yet the very vogue of the electric arc light made harder the arrival of the incandescent. Frank Lewis Dyer. Edison, His Life and Inventions.
- While the arcs with plain carbons are bluish-white, those with carbons containing calcium fluoride have a notable golden glow. Frank Lewis Dyer. Edison, His Life and Inventions.
- The use of electrical current in twelve principal cities in the United States was distributed in 1898 as follows: Lamps, arcs, and motors in sixteen candle power equivalents. Edward W. Byrn. The Progress of Invention in the Nineteenth Century.
- The brass connections on it were black with age and with the arcing effects of lightning, which, to young Edison, seemed particularly partial to Louisville. Frank Lewis Dyer. Edison, His Life and Inventions.
Editor: Sidney