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Systyle :: Systyle (a.) Having a space equal to two diameters or four modules between two columns; -- said of a portico or building. See Intercolumniation.

Diameter :: Diameter (n.) Any right line passing through the center of a figure or body, as a circle, conic section, sphere, cube, etc., and terminated by the opposite boundaries; a straight line which bisects a system of parallel chords drawn in a curve..

Heliometer :: Heliometer (n.) An instrument devised originally for measuring the diameter of the sun; now employed for delicate measurements of the distance and relative direction of two stars too far apart to be easily measured in the field of view of an ordinary telescope.

Ellipse :: Ellipse (n.) An oval or oblong figure, bounded by a regular curve, which corresponds to an oblique projection of a circle, or an oblique section of a cone through its opposite sides. The greatest diameter of the ellipse is the major axis, and the least diameter is the minor axis. See Conic section, under Conic, and cf. Focus..

Jupiter :: "Jupiter (n.) One of the planets, being the brightest except Venus, and the largest of them all, its mean diameter being about 85,000 miles. It revolves about the sun in 4,332.6 days, at a mean distance of 5.2028 from the sun, the earth's mean distance being taken as unity..

Trunk :: Trunk (n.) A large pipe forming the piston rod of a steam engine, of sufficient diameter to allow one end of the connecting rod to be attached to the crank, and the other end to pass within the pipe directly to the piston, thus making the engine more compact..

Over :: Over (adv.) From one side to another; from side to side; across; crosswise; as, a board, or a tree, a foot over, i. e., a foot in diameter..

Mercury :: Mercury (n.) One of the planets of the solar system, being the one nearest the sun, from which its mean distance is about 36,000,000 miles. Its period is 88 days, and its diameter 3,000 miles..

Coccobacterium :: Coccobacterium (n.) One of the round variety of bacteria, a vegetable organism, generally less than a thousandth of a millimeter in diameter..

Ellipticity :: Ellipticity (n.) Deviation of an ellipse or a spheroid from the form of a circle or a sphere; especially, in reference to the figure of the earth, the difference between the equatorial and polar semidiameters, divided by the equatorial; thus, the ellipticity of the earth is /..

Digit :: Digit (n.) One twelfth part of the diameter of the sun or moon; -- a term used to express the quantity of an eclipse; as, an eclipse of eight digits is one which hides two thirds of the diameter of the disk..

Sun :: Sun (n.) The luminous orb, the light of which constitutes day, and its absence night; the central body round which the earth and planets revolve, by which they are held in their orbits, and from which they receive light and heat. Its mean distance from the earth is about 92,500,000 miles, and its diameter about 860,000..

Swing :: Swing (v. t.) To admit or turn (anything) for the purpose of shaping it; -- said of a lathe; as, the lathe can swing a pulley of 12 inches diameter..

Eriometer :: Eriometer (n.) An instrument for measuring the diameters of minute particles or fibers, from the size of the colored rings produced by the diffraction of the light in which the objects are viewed..

Telodynamic :: Telodynamic (a.) Relating to a system for transmitting power to a distance by means of swiftly moving ropes or cables driving grooved pulleys of large diameter.

Hair''sbreadth :: Hair'sbreadth () The diameter or breadth of a hair; a very small distance; sometimes, definitely, the forty-eighth part of an inch..

Saturn :: Saturn (n.) One of the planets of the solar system, next in magnitude to Jupiter, but more remote from the sun. Its diameter is seventy thousand miles, its mean distance from the sun nearly eight hundred and eighty millions of miles, and its year, or periodical revolution round the sun, nearly twenty-nine years and a half. It is surrounded by a remarkable system of rings, and has eight satellites..

Victoria :: Victoria (n.) A genus of aquatic plants named in honor of Queen Victoria. The Victoria regia is a native of Guiana and Brazil. Its large, spreading leaves are often over five feet in diameter, and have a rim from three to five inches high; its immense rose-white flowers sometimes attain a diameter of nearly two feet..

Mushroom-headed :: Mushroom-headed (a.) Having a cylindrical body with a convex head of larger diameter; having a head like that of a mushroom.

Windage :: Windage (n.) The difference between the diameter of the bore of a gun and that of the shot fired from it.

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