arc
(ärk)
[Middle English ark, from Old French arc, from Latin arcus.]
noun
- Something shaped like a curve or arch: the vivid arc of a rainbow.
- Mathematics A segment of a circle.
- An electric arc.
- Astronomy The apparent path of a celestial body as it rises above and falls below the horizon.
intransitive verb: arced (ärkt), arc·ing (äŕkĭng), arcs.
- To form an arc.
- To move or seem to move in a curved path: the stars that arc across the sky.
ARC
1 (ärk)
[A(IDS)-r(elated) c(omplex).]
noun
- A combination of symptoms, including fever, lymphadenopathy, blood abnormalities, and susceptibility to opportunistic infections that is a precursor to AIDS in some individuals infected with HIV.
ARC2
abbreviation
- American Red Cross