arcus

(redirected from arcus cornealis)
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Related to arcus cornealis: arcus senilis, xanthelasma, arcus adiposus

arcus

[′ar·kəs]
(meteorology)
A dense and horizontal roll-shaped accessory cloud, with more or less tattered edges, situated on the lower front part of the main cloud.

arcus

A low, horizontal cloud formation associated with the leading edge of thunderstorm outflow (i.e., gust front). Roll clouds and shelf clouds are both types of arcus clouds.
References in periodicals archive ?
Arcus cornealis was present in 36%, and 80% had tendon xanthomata.
Arcus cornealis is present in about 25% of FH subjects by the age of 40 years and about 45% by the age of 50 years; by the age of 75 years more than 75% of the cohort was affected, possibly due to senescence (arcus senilis).
Body mass index, PCVD prevalence, the presence of tendinous xanthomas and arcus cornealis, total and serum LDL-cholesterol concentrations, and the frequencies of the 118 mutations were significantly higher in patients with a definite clinical diagnosis of FH.