arcus cornealis arcus cor·ne·a·lis (kôr’nē-ā’lĭs)
An opaque, grayish ring at the periphery of the cornea just within the sclerocorneal junction, common among the elderly and resulting from a deposit of fatty granules in, or hyaline degeneration of, the lamellae and cells of the cornea. Also called anterior embryotoxon, arcus adiposus, arcus juvenilis, arcus senilis, gerontoxon.
- Arcus senilis
the appearance of a yellowish-gray lipid ring around the margin of the cornea, occurring in aging persons. Historical Examples In elderly persons we ought always to look for the arcus senilis, which is a sign of a tendency to fatty degeneration. A System of Practical Medicine by American Authors, Vol. I Various Moreover, there is […]
a town in NW Iran, near the Caspian Sea. Historical Examples Russian merchandize is landed there and forwarded to Azerbijn and Tabriz via Ardebil. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 7 Various Ardebil has a population of about 10,000, and post and telegraph offices. Encyclopaedia Britannica, 11th Edition, Volume 2, Slice 5 Various At […]
a suffix forming nouns that denote persons who regularly engage in an activity, or who are characterized in a certain way, as indicated by the stem; now usually pejorative: coward; dullard; drunkard; wizard. Contemporary Examples “I’ve spent time building bridges to all factions in that debate, trying to work tow ard compromise,” he said. Lou […]
a unit of capacity used for dry measure in Egypt and neighboring countries, officially equivalent in Egypt to 5.62 U.S. bushels, but varying greatly in different localities. Historical Examples The monthly pay of the mulazemin consists of half a Dervish dollar, and, every fortnight, one-eighth of an ardeb of dhurra. Fire and Sword in the […]