American Red Cross.
something curved in shape
part of an unbroken curved line
a luminous discharge that occurs when an electric current flows between two electrodes or any other two surfaces separated by a small gap and a high potential difference
(astronomy) a circular section of the apparent path of a celestial body
(maths) a section of a curve, graph, or geometric figure
verb arcs, arcing, arced, arcs, arcking, arcked
(intransitive) to form an arc
(maths) specifying an inverse trigonometric function: usually written arcsin, arctan, arcsec, etc, or sometimes sin–1, tan–1, sec–1, etc
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
late 14c., originally in reference to the sun’s apparent motion in the sky, from Old French arc “bow, arch, vault” (12c.), from Latin arcus “a bow, arch,” from PIE root *arku- “bowed, curved” (cf. Gothic arhvazna “arrow,” Old English earh, Old Norse ör; also, via notion of “supple, flexible,” Greek arkeuthos, Latvian ercis “juniper,” Russian rakita, Czech rokyta, Serbo-Croatian rakita “brittle willow”). Electrical sense is from 1821.
1893, in the electrical sense, from arc (n.). Meaning “to move in an arc” attested by 1954. Related: Arced; arcing.
A curved line or segment of a circle.
A segment of a circle.
See electric arc.
Addiction Research Center
advance readers copy
amateur radio club
American Red Cross
[National Aeronautics and Space Administration] Ames Research Center
Appalachian Regional Commission
Associate of the Royal College of Science. Associate of the Royal College of Surgeons.
AIDS-related virus. See under . .
Prince Abdul [ahb-dool] /ˈɑb dul/ (Show IPA), 1903–90, Malayan political leader: prime minister of Malaya 1957–63; premier of Malaysia 1963–70. Contemporary Examples Rahman stood his ground, insisting that his daughter was too young to be engaged. Afghanistan Horror: A 14-Year-Old Girl Is Beheaded Sami Yousafzai, Ron Moreau December 1, 2012 Rahman was later found dead, […]
- Perez esquivel
Adolfo [uh-dol-foh;; Spanish ah-th awl-faw] /əˈdɒl foʊ;; Spanish ɑˈðɔl fɔ/ (Show IPA), born 1931, Argentine sculptor and human rights activist: Nobel prize 1980.