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found in or upon, or frequenting, woods or trees; as, arboreal animals. Woodpeckers are eminently arboreal. Darwin.

The state of being arborescent; the resemblance to a tree in minerals, or crystallizations, or groups of crystals in that form; as, the arborescence produced by precipitating silver.

The appearance or figure of a tree or plant, as in minerals or fossils; a dendrite.

Chief; eminent; greatest; principal. The most arch act of piteous massacre. Shak.

One of the chief magistrates in ancient Athens, especially, by preëminence, the first of the nine chief magistrates. -- Ar*chon"tic, a.

Furnished with whatever serves to add strength, force, or efficiency. A distemper eminently armed from heaven. De Foe.

To adjust or settle; to prepare; to determine; as, to arrange the preliminaries of an undertaking.

Notoriously or preëminently bad; thorough or downright, in a bad sense; shameless; unmitigated; as, an arrant rogue or coward. I discover an arrant laziness in my soul. Fuller.

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

man skill and labor, in opposition to natural; as, artificial heat or light, gems, salts, minerals, fountains, flowers. Artificial strife Lives in these touches, livelier than life. Shak.

An eminence, hill, or high place. Addison.

n to the mind; to free from obscurity, doubt, or change; to make sure of; to fix; to determine. [Archaic] The divine law . . . ascertaineth the truth. Hooker. The very deferring [of his execution] shall increase and ascertain the condemnation. Jer. Taylor. The ministry, in order to ascertain a majority . . . persuaded…

The earthy or mineral particles of combustible substances remaining after combustion, as of wood or coal.

Mineral pitch, Jews' pitch, or compact native bitumen. It is brittle, of a black or brown color and high luster on a surface of fracture; it melts and burns when heated, leaving no residue. It occurs on the surface and shores of the Dead Sea, which is therefore called Asphaltites, or the Asphaltic Lake. It is found als…

to molest; as, to assail a man with blows; to assail a city with artillery. No rude noise mine ears assailing. Cowper. No storm can now assail The charm he wears within. Keble.

y, 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.

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.

The act or process of testing, esp. of analyzing or examining metals and ores, to determine the proportion of pure metal.

To determine and impose a tax or fine upon (a person, community, estate, or income); to tax; as, the club assessed each member twenty- five cents.

cording to which they are thus connected or revived are called the law of association. Prominent among them are reckoned the relations of time and place, and of cause and effect. Porter.