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Related to arcus: corneal arcus


 [ahr´kus] (pl. ar´cus) (L.)
arch; bow.
arcus adipo´sus arcus corneae.
arcus cor´neae (arcus cornea´lis) a white or gray opaque ring in the corneal margin; it may be present at birth or appear in childhood (see arcus juvenilis), but the condition is particularly common in those over 50 years old (see arcus senilis). It results from cholesterol deposits in or hyaline degeneration of the corneal stroma and may be associated with ocular defects or with familial hyperlipidemia.
arcus juveni´lis arcus corneae in young persons.
arcus seni´lis arcus corneae in the elderly. (See Atlas 4, Part E).
Miller-Keane Encyclopedia and Dictionary of Medicine, Nursing, and Allied Health, Seventh Edition. © 2003 by Saunders, an imprint of Elsevier, Inc. All rights reserved.


(arch), [TA]
Any structure resembling a bent bow or an arc. In anatomy, any vaulted or archlike structure. See: arcus.
Synonym(s): arcus [TA]
[thru O. Fr. fr. L. arcus, bow]
Farlex Partner Medical Dictionary © Farlex 2012


(ahrch) [TA]
anatomy Any vaulted or archlike structure or arc.
Synonym(s): arcus [TA] .
[thru O. Fr. fr. L. arcus, bow]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012


(ar'kus) plural.arcus [L. arcus, a bow]
In anatomy, an arch. See: arch

arcus alveolaris mandibulae

The arch formed by the alveolar process of the body of the mandible.

arcus alveolaris maxillae

Limbus alveolaris.

arcus dentalis

Dental arch.

arcus juvenilis

An opaque ring about the periphery of the cornea similar to arcus senilis but occurring in the young. It may be due to hypercholesterolemia, corneal irritation or inflammation, or a congenital anomaly.
Enlarge picture

arcus senilis

An opaque white ring about the periphery of the cornea, seen in the aged. It is caused by the deposit of fat granules in the cornea or by hyaline degeneration.
See: illustration
Medical Dictionary, © 2009 Farlex and Partners


(ahrch) [TA]
Any structure resembling a bent bow or an arc. In anatomy, any vaulted or archlike structure.
Compare: dental arch
Synonym(s): arcus [TA] .
[thru O. Fr. fr. L. arcus, bow]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Arcus has extensive in-house expertise in medicinal chemistry, immunology, biochemistry, pharmacology and structural biology.
The company has had its fair share of growing pains, but Arcus said there were none so large that caused them to shut down or face buyouts.
At the trial, ARCUS submitted appraisal evidence indicating a value of $2,560,000 for the property, and Grantsville submitted appraisal evidence indicating property value of $5,860,000.
"Partnering with Arcus Foundation on this year's Great Apes Giving Day has been valuable for GFAS in promoting our updated mission to improve the quality of care for animals requiring sanctuary," remarks Kellie Heckman, GFAS Executive Director.
Sidley Austin LLP and Hovey Williams LLP served as legal advisors to Bregal Partners and Arcus Hunting in the transaction.
"Baxalta is an ideal partner in CAR T for Precision and our ARCUS genome editing platform because of their global reach, collaborative business model, and long-term commitment to succeeding in immuno-oncology," said Matthew Kane, chief executive officer of Precision BioSciences.
The Arcus system is indicated for fixation of bone fractures, bone reconstruction, ligament, soft tissue and tendon, which includes fixation of bone fragments or small-bone fractures, as well as fracture management in the foot and hand.
Arcus corneae (or arcus senilis) is a gray-white-yellowish opacity that is located near the periphery of the cornea, though separated from the limbic margin by a clear corneal zone.
For this analysis, the researchers included 12,745 people for whom complete information on all relevant variables, including xanthelasmata and arcus corneae, were available at baseline.
The study, led by Professor Anne Tybaerg-Hansen at the University of Copenhagen, also concludes that white or grey rings around the cornea (arcus corneae) are not linked to an increased risk.
The group, assembled by Emory's James Weldon Johnson Institute for Advanced Interdisciplinary Studies and funded with a $235,000 grant by the Arcus Foundation, will study such civil rights figures as Bayard Rustin, a gay activist who advised Martin Luther King Jr.
Arcus Capital, who own 22.8 per cent of Forth, will pay pounds 16.30 a share plus a 20p-a-share dividend.