from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Something shaped like a curve or arch: the vivid arc of a rainbow.
- n. Mathematics A segment of a circle.
- n. An electric arc.
- n. Astronomy The apparent path of a celestial body as it rises above and falls below the horizon.
- intransitive v. To form an arc.
- intransitive v. To move or seem to move in a curved path: the stars that arc across the sky.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A directed edge.
- v. To move following a curved path.
- v. To form an electrical arc.
from the GNU version of the Collaborative International Dictionary of English
- n. A portion of a curved line.
- n. A curvature in the shape of a circular arc or an arch
- 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.
- intransitive v. To form a voltaic arc, as an electrical current in a broken or disconnected circuit.
from The Century Dictionary and Cyclopedia
- n. In geometry, any part of a curved line, as of a circle, especially one which does not include a point of inflection or cusp.
- n. In astronomy, a part of a circle traversed by the sun or other heavenly body; especially, the part passed over by a star between its rising and setting.
- n. In architecture, an arch.
- n. Obsolete form of ark.
- n. An abbreviation of Associate of the Royal College of Organists.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. something curved in shape
- v. form an arch or curve
- n. a continuous portion of a circle
- n. electrical conduction through a gas in an applied electric field
Middle English ark, from Old French arc, from Latin arcus.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Middle English, from Old French arc, from Latin arcus ("a bow, arc, arch"). (Wiktionary)