Search the Dictionary

One of the individual members of a compound ascidian. See Ascidioidea.

A piece of ordnance carrying a 12 pound shot. [Obs.]

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

To subject, as an ore, alloy, or other metallic compound, to chemical or metallurgical examination, in order to determine the amount of a particular metal contained in it, or to ascertain its composition.

enience. Since it bears the same relation to the milligram that a ton of 2000 avoirdupois pounds does to the troy ounce, the weight in milligrams of precious metal obtained from an assay ton of ore gives directly the number of ounces to the ton.

One who assays. Specifically: One who examines metallic ores or compounds, for the purpose of determining the amount of any particular metal in the same, especially of gold or silver.

A genus of herbs with compound white or bluish flowers; starwort; Michaelmas daisy.

rawing paper of large size. See under Paper, n. Atlas powder, a nitroglycerin blasting compound of pasty consistency and great explosive power.

Pertaining to, or derived from, gold; -- said of those compounds of gold in which this element has its higher valence; as, auric oxide; auric chloride.

Pertaining to, or derived from, gold; -- said of those compounds of gold in which this element has its lower valence; as, aurous oxide.

Applied loosely to compounds having nitrogen variously combined, as in cyanides, nitrates, etc.

Any of a large class of compounds characterized by a five- membered ring which contains an atom of nitrogen and at least one other noncarbon atom (nitrogen, oxygen, sulphur). The prefixes furo-, thio, and pyrro-are used to distinguish three subclasses of azoles, which may be regarded as derived respectively from furfur…

ast Indies, varying considerably in different localities, the range being from 223 to 625 pounds.

A condiment formed of small fishes or shrimps, pounded up with salt and spices, and then dried. It is much esteemed in China.

A mineral of a white or gray color, occurring massive or crystallized. It is a compound of the carbonates of barium and calcium.

The chief ingredient in a compound.

A positive or nonacid constituent of compound, either elementary, or, if compound, performing the functions of an element.

." Dickens. -- Bath metal, an alloy consisting of four and a half ounces of zinc and one pound of copper. -- Bath note, a folded writing paper, 8 1/2 by 14 inches. -- Bath stone, a species of limestone (oölite) found near Bath, used for building.

n the East, varying according to the locality; in Turkey, the greater batman is about 157 pounds, the lesser only a fourth of this; at Aleppo and Smyrna, the batman is 17 pounds. Simmonds.

irst observed by the French physicist Henri Becquerel, in working with uranium and its compounds. They consist of a mixture of alpha, beta, and gamma rays.