Cub bridgehead

( Naut. ) A rail or partition drawn acro a ship's half-deck. Cub'by, Cub'by-hole, n. A den; a narrow, confined place. Cub'-drawn, a . Drawn by cubs. Cube, n. [Fr. Lat. cub us ; Gr. kubos, a solid square; probably from some root signifying a solid ma ; W.cub , a bundle, a heap, a cube.] ( Geom .) A body having the shape of a die; a solid square; a die; a regular solid body, with six equal square sides, and containing equal angles. (Crystal.) The cube or hexahedron has six square faces or planes, and the three equal axes (printed in bold lines, Fig . 736) terminate in the centre of each of the square faces. The planes of squares are symmetrically arranged, so that they are perpendicular to one axis, and parallel to the other two. The crystals have each 6 square faces, with 12 equal edges, and 8 equal angles. Examples of substances which crystallize in the Fig . 736. form of the cube, are: common iron pyrites, common salt, or chloride of sodium, . CUBE, OR HEXAHEDRON. ( Arith .) The product of a number obtained by taking that number three times as a factor; as, 64, obtained from 4 multiplied by 4, multiplied by 4. v.a. To raise to the third power, by multiplying a number into itself, and the product thus obtained by the same number. Cube'ba, n . [Fr. cubébe ; Hind. kabab a .] ( Bot .) A genus of plants, order Pipe race a . Distinguished by its diecious flowers being partly covered by se ile bracts, and by its fruits being elevated on a sort of stalk, formed from the contraction of the base of the fruit itself. C. officinal is , or Java pepper, a native of Java, yields the berries, called cubebs , which are extensively used in medicine. They have a bitter and aromatic flavor, and contain volatile oil and resin; they are stomachic; and given in a dose of from 1 to 2 drachms in powder, 2 or 3 times a day, have proved curative in certain forms of gonorrhœa. Cu'bebs, n . pl . See CUBEBA. Cube'-ore, n. ( Min . ) Same as PHARMACOCIDERITE, q. τ. Cube'-root, n. ( Arith .) A number or quantity which, if multiplied into itself, and then again by the product, produces the cube; or, when twice multiplied into itself, produces the number or quantity of which it is the root. Thus 5 is the cube-root of 125, because 5×5=25×5=125, Cube'-spar, n . ( Min .) Same as ANHYDRITE, q. v. Cub Hill, in Maryland , a post-office of Baltimore co. Cubic, Cubical, a. [Lat. cubic us .] Relating to, or having the form or properties of, a cube; that may be or is contained within a cube. (Crystal.) Monometric. Cubic Equation. ( Algebra .) An equation which involves the cube of an unknown quantity. A cubie equation is said to be a pure one, when it consists of two terms only; one of which is a simple number. Thus z+c=0 is a pure cubic equation. All other cubic equations are said to be adfected . The most general adfested cubic equation can obviously be reduced to the form x3+3a1x2+3x+a3=0. Cubical Parabola . ( Math .) There are two curves known by this name; one is a non-plane [CUBIC], the other a plane curve. The latter has for its equation ay3; it has a point of inflection at the origin, and a cusp at infinity. It is of the third cla , and has the origin for a centre. Cubi'ca, n . ( Manf . ) A fine description of shalloon. writers endeavored to avoid offering such violence to our language, by speaking of all the component materials of the earth as consisting of rocks and soils . But there is often so insensible a pa age from a soft and incoherent state to that of stone, that geologists of all countries have found it indispensable to have one technical term to include both, and in this sense we find roc he applied in French, rocca in Italian, and felsart in German. Cruz, JÓSE MARIA, DE LA, Chilian general, born at Concepcion, April 21, 1801. He joined the revolutionary army as a cadet in 1811, and received rapid promotion. In 1831 he was appointed minister of war, and subsequently became chief of staff of the army which invaded Peru. In 1839 he was made general of division. He was again made minister of war and marine in 1841, and in the same year became governor of Val para i so, ber. Cubicule, n . [Lat., from cubitus , a bed.] ( Arch . ) Among the Romans, a bed-chamber, tent, or balcony. - Cubitum , according to Pliny, was a room furnished with a sofa or bed. Cu'biform, a . Having the form of a cube. Cubit, ( ku'bit , ) n . [Lat. cubitus .] A measure of length employed by the ancients, and more especially by the Hebrews. It was originally the distance from the elbow to the tip of the middle finger. According to some authorities, there were two cubits in use by the Jews, the sacred and the common cubit. The former was 21 inches long, and the latter 18 inches. Calmet, however, states his belief that the second, or shorter C., was not introduced until after the Babylonian captivity. Hence Ezekiel's precaution ( Ezek . xl. 5), in speaking of the C as a C. and a hand-breadth. The exact length of the is not known; it has been stated to be 1 ft. 9-888 inches, and a hand-breadth 3-684 inches in the tables of measure affixed to several versions of the authorized Bible.