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Arc 音标拼音: ['ɑrk] n. 弧形,弓形,弧光,弧 弧形,弓形,弧光,弧 arc弧 arc弧 arc n 1: electrical conduction through a gas in an applied electric field [ synonym: { discharge}, { spark}, { arc}, { electric arc}, { electric discharge}] 2: a continuous portion of a circle 3: something curved in shape [ synonym: { bow}, { arc}] v 1: form an arch or curve; " her back arches"; " her hips curve nicely" [ synonym: { arch}, { curve}, { arc}] Arc \ Arc\ ([ aum] rk), v. i. [ imp. & p. p. { Arcked} ([ aum] rkt); p. pr. & vb. n. { Arcking}.] ( Elec.) To form a voltaic arc, as an electrical current in a broken or disconnected circuit. [ Webster 1913 Suppl.]
Arc \ Arc\, n. [ F. arc, L. arcus bow, arc. See { Arch}, n.] 1. ( Geom.) A portion of a curved line; as, the arc of a circle or of an ellipse. [ 1913 Webster] 2. A curvature in the shape of a circular arc or an arch; as, the colored arc ( the rainbow); the arc of Hadley' s quadrant. [ 1913 Webster] 3. An arch. [ Obs.] [ 1913 Webster] Statues and trophies, and triumphal arcs. -- Milton. [ 1913 Webster] 4. 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. [ 1913 Webster] { Electric arc}, { Voltaic arc}. See under { Voltaic}. [ 1913 Webster] 59 Moby Thesaurus words for " arc": AC arc, Poulsen arc, aperiodic discharge, arc column, arc discharge, arc light, arch, bend, bow, brush discharge, catacaustic, catenary, caustic, circle, color filter, conchoid, crook, curl, curvation, curvature, curve, diacaustic, dimmer, discharge, disruptive discharge, electric discharge, electric shock, electric spark, electrodeless discharge, ellipse, festoon, floats, flood, floodlight, footlights, foots, galvanic shock, gelatin, glow discharge, hook, hyperbola, klieg light, light plot, lights, limelight, lituus, marquee, medium, oscillatory discharge, parabola, round, shock, silent discharge, sinus, spark, spark gap, spot, spotlight, tracery |
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