arc

[ ahrk ]
/ ɑrk /

noun

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.

verb (used without object), arced [ahrkt] /ɑrkt/ or arcked, arc·ing [ahr-king] /ˈɑr kɪŋ/ or arck·ing.

to form an electric arc.
to move in a curve suggestive of an arc.

Origin of arc

1350–1400; Middle English ark < Latin arcus bow, arch, curve

WORDS THAT MAY BE CONFUSED WITH arc

arc ark

Definition for arcs (2 of 3)

ARC
[ ahrk ]
/ ɑrk /

noun

Definition for arcs (3 of 3)

A.R.C.S.

Associate of the Royal College of Science.
Associate of the Royal College of Surgeons.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for arcs

British Dictionary definitions for arcs (1 of 3)

ARCS

abbreviation for

Associate of the Royal College of Science

British Dictionary definitions for arcs (2 of 3)

arc
/ (ɑːk) /

noun

verb arcs, arcing, arced, arcs, arcking or arcked

(intr) to form an arc

prefix

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

C14: from Old French, from Latin arcus bow, arch

British Dictionary definitions for arcs (3 of 3)

ARC

abbreviation for

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
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Medical definitions for arcs (1 of 2)

arc
[ ärk ]

n.

A curved line or segment of a circle.

Medical definitions for arcs (2 of 2)

ARC

abbr.

AIDS-related complex
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Scientific definitions for arcs

arc
[ ärk ]

A segment of a circle.
See electric arc.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.