arcus


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Related to arcus: corneal arcus

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).

arch

(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]

arcus

/ar·cus/ (ahr´kus) pl. ar´cus   [L.] arch; bow.
arcus adipo´sus , arcus cor´neae, arcus juveni´lis a white or gray opaque ring in the margin of the cornea, sometimes present at birth, but usually occurring bilaterally in persons of 50 years or older as a result of cholesterol deposits in or hyalinosis of the corneal stroma.

arcus

See arch.

arch

(ahrch) [TA]
anatomy Any vaulted or archlike structure or arc.
Synonym(s): arcus [TA] .
[thru O. Fr. fr. L. arcus, bow]

arcus

(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

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

arch

(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]
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References in periodicals archive ?
Originally brought in to help develop the residential side of the company, Arcus has recently turned more attention to helping expand the commercial side of the operation.
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a series of internet-based electronic field trips developed by ARCUS, in which students across the country can be transported virtually to unique and remote locations within the arctic region.
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Vender con solo un clic
s Consumer Digital Imaging Group (USA-CDI), a leading provider of award-winning digital cameras and desktop scanners, introduced the Arcus 1200 color scanner.
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Cypress Semiconductor Corp is to acquire Arcus Technology Ltd, for $20m.
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The EFTA Surveillance Authority, the European Free Trade Association's competition body, concluded in a Decision handed down on December 3 that the Arcus Group had received state aid illegally.
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So after 12 years, she's working with a Bend marketing company called The Arcus Group, which is putting together a financial management plan for Kibak Tile, the company Redfield owns with her husband Randy.
A degree in tiles

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