a dense, horizontal, roll-shaped cloud sometimes occurring at the lower front portion of a cumulonimbus.
The Romans originally called their triumphal arch fornix, not arcus.
Rambles in Rome S. Russell Forbes
A view of this is given by Donati, who calls it the arcus Domitiani.
Old Rome Robert Burn
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 the arcus senilis, the fine translucent to opaque circle surrounding the outer portion of the iris.
Arteriosclerosis and Hypertension: Louis Marshall Warfield
The frustules are curved or arcuate (arcus, a bow) in the side view, oblong and narrowed at the ends in the front view.
An Elementary Text-book of the Microscope John William Griffith
Otia si tollas, periere Cupidinis arcus—Remove 45 the temptations of idleness, and Cupid’s bow is useless.
Dictionary of Quotations from Ancient and Modern, English and Foreign Sources James Wood
The etymology of arcus is the same; the root arc not only means to hurl, but to sing or resound.
Myth and Science Tito Vignoli
Its claim, as the parent of projectile implements, is recognized in the common etymology of arcus, arcualia—artillery.
Lippincott’s Magazine of Popular Literature and Science Vol. XV., No. 85. January, 1875. Various
arcus ar·cus (är’kəs)
n. pl. arcus
A structure resembling a bent bow or an arch.
- Arcus cornealis
arcus cornealis arcus cornealis arcus cor·ne·a·lis (kôr’nē-ā’lĭs) n. 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
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 […]