meaning of arch3

1. A portion of a curved line; as, the arc of a circle or of an ellipse.
2.
A curvature in the shape of a circular arc or an arch; as, the colored arc (the rainbow); the arc of Hadleys quadrant.
3.
An arch.
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.
5.
electrical conduction through a gas in an applied electric field


Related Words

arc | arc lamp | arc light | arc-boutant | arca | arcade | arcaded | arcadia | arcadian | arcadic | arcana | arcane | arcanum | arcboutant | arcdegree | arced | arcella | arcellidae | arceuthobium | arceuthobium pusillum | arch | arch over | arch support | arch- | archaean | archaebacteria | archaebacterium | archaeobacteria | archaeography | archaeolithic |

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