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ructure consisting of more or less regular columns, usually six-sided, but sometimes with eight or more sides. The columns are often fractured transversely, with a cup joint, showing a concave surface above. This structure is characteristic of certain igneous rocks, as basalt, and is due to contraction in cooling.…

chemical affinity, by which substances unite with each other in definite proportions by weight to form distinct compounds.

or more cards whose aggregate number of pips equals those of the card played. Combining weight (Chem.), that proportional weight, usually referred to hydrogen as a standard, and for each element fixed and exact, by which an element unites with another to form a distinct compound. The combining weights either are ident…

sun as to be obscured or eclipsed by his light, as the moon or planets when not more than eight degrees and a half from the sun. [Obs.] Planets that are oft combust. Milton.

overlook. Bridges commanded by a fortified house. Motley. Up to the eastern tower, Whose height commands as subject all the vale. Shak. One side commands a view of the finest garden. Addison.

To feel sorrow, pain, or regret for; to pity. Then must we those, who groan, beneath the weight Of age, disease, or want, commiserate. Denham. We should commiserate our mutual ignorance. Locke.

headdress formerly worn by ladies, raising the hair and fore part of the cap to a great height. Or under high commodes, with looks erect. Granville.

A union of two or more ingredients in definite proportions by weight, so combined as to form a distinct substance; as, water is a compound of oxygen and hydrogen.

Capable of being conceived, imagined, or understood. "Any conceivable weight." Bp. Wilkins. It is not conceivable that it should be indeed that very person whose shape and voice it assumed. Atterbury. -- Con*ceiv"a*ble*ness, n. -- Con*ceiv"a*bly, adv.

Used for condemned persons. Richard Savage . . . had lain with fifty pounds weight of irons on his legs in the condemned ward of Newgate. Macaulay.

ore substances into a distinct and definite compound of greater complexity and molecular weight, often resulting in an increase of density, as the condensation of oxygen into ozone, or of acetone into mesitylene. Condensation product (Chem.), a substance obtained by the polymerization of one substance, or by the union…

lique or Scalene cone, a cone of which the axis is inclined to the plane of its base. -- Eight cone. See Cone, 1.

s to act by the aid super natural power; also, one who performs feats of legerdemain or sleight of hand. Dealing with witches and with conjurers. Shak. From the account the loser brings, The conjurer knows who stole the things. Prior.

A bracket whose projection is not more than half its height.

cord or agreement of sounds produced simultaneously, as a note with its third, fifth, and eighth.

to escort; as, a frigate convoys a merchantman. I know ye skillful to convoy The total freight of hope and joy. Emerson.

One who has convulsions; esp., one of a body of fanatics in France, early in the eighteenth century, who went into convulsions under the influence of religious emotion; as, the Convulsionists of St. Médard.

y tenacious. It is one of the best conductors of heat and electricity. Symbol Cu. Atomic weight 63.3. It is one of the most useful metals in itself, and also in its alloys, brass and bronze.

A solid measure, equivalent to 128 cubic feet; a pile of wood, or other coarse material, eight feet long, four feet high, and four feet broad; -- originally measured with a cord or line.

ater works. A heavy pump rod or plunger, raised by the steam, forces up the water by its weight, in descending.