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The area in the central part of an amphitheater, in which the gladiators fought and other shows were exhibited; -- so called because it was covered with sand.

Whiteness; anything that is white. The polished argent of her breast. Tennyson.

Silvery white. Gray.

A siliceous variety of calcite, or carbonate of lime, having a silvery-white, pearly luster, and a waving or curved lamellar structure.

An alkaloid, first found in white cinchona bark.

lse coat or appendage to a seed, as the loose, transparent bag inclosing the seed or the white water lily. The mace of the nutmeg is also an aril. Gray.

plate, or with whatever will add strength, force, security, or efficiency; as, to arm the hit of a sword; to arm a hook in angling.

A scurfiness of the back part of the hind leg of a horse; -- also named rat-tails. White. Arrest of judgment (Law), the staying or stopping of a judgment, after verdict, for legal cause. The motion for this purpose is called a motion in arrest of judgment.

Arsenious oxide or arsenious anhydride; -- called also arsenious acid, white arsenic, and ratsbane.

A mineral of a tin-white color and metallic luster, containing arsenic, sulphur, and iron; -- also called arsenical pyrites and mispickel.

xene, occurring in long and delicate fibers, or in fibrous masses or seams, usually of a white, gray, or green-gray color. The name is also given to a similar variety of serpentine.

s ascensions from the stomach. Sir T. Browne. Ascension Day, the Thursday but one before Whitsuntide, the day on which commemorated our Savior's ascension into heaven after his resurrection; -- called also Holy Thursday. -- Right ascension (Astron.), that degree of the equinoctial, counted from the beginning of Aries,…

the species furnishing valuable timber, as the European ash (Fraxinus excelsior) and the white ash (F. Americana). Prickly ash (Zanthoxylum Americanum) and Poison ash (Rhus venenata) are shrubs of different families, somewhat resembling the true ashes in their foliage. -- Mountain ash. See Roman tree, and under Mounta…

Of the color of ashes; a whitish gray or brownish gray.

Consisting of, or resembling, ashes; of a color between brown and gray, or white and gray. The ashen hue of age. Sir W. Scott.

Ash-colored; whitish gray; deadly pale. Shak. Ashy pale, pale as ashes. Shak.

A white, nitrogenous, crystallizable substance, C4H8N2O3+H2O, found in many plants, and first obtained from asparagus. It is believed to aid in the disposition of nitrogenous matter throughout the plant; -- called also altheine.

A white crystalline compound of acetyl and salicylic acid used as a drug for the salicylic acid liberated from it in the intestines.

To collect into one place or body; to bring or call together; to convene; to congregate. Thither he assembled all his train. Milton. All the men of Israel assembled themselves. 1 Kings viii. 2.

One who assumes, arrogates, pretends, or supposes. W. D. Whitney.