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ne 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.

southerly. Offices that require heat ... should be meridional. Sir H. Wotton. Meridional distance, the distance or departure from the meridian; the easting or westing. -- Meridional parts, parts of the meridian in Mercator's projection, corresponding to each minute of latitude from the equator up to 70 or 80 degrees;…

ts and measures. It was intended to be, and is very nearly, the ten millionth part of the distance from the equator to the north pole, as ascertained by actual measurement of an arc of a meridian. See Metric system, under Metric. Common meter (Hymnol.), four iambic verses, or lines, making a stanza, the first and third…

A measure of energy or work done; the power exerted in raising one gram through the distance of one meter against gravitation.

An instrument, used with a telescope or microscope, for measuring minute distances, or the apparent diameters of objects which subtend minute angles. The measurement given directly is that of the image of the object formed at the focus of the object glass. Circular, or Ring, micrometer, a metallic ring fixed in the foc…

The middle of the way or distance; a middle way or course. Shak. Paths indirect, or in the midway faint. Milton.

A certain measure of distance, being equivalent in England and the United States to 320 poles or rods, or 5,280 feet.

Aggregate length or distance in miles; esp., the sum of lengths of tracks or wires of a railroad company, telegraph company, etc. [Written also milage.] Constructive mileage, a mileage allowed for journeys supposed to be made, but not actually made. Bartlett.

A post, or one of a series of posts, set up to indicate spaces of a mile each or the distance in miles from a given place.

Of or pertaining to a mile, or to distance by miles; denoting a mile or miles. A milliary column, from which they used to compute the distance of all the cities and places of note. Evelyn.

projected from the hand, or from any instrument or rngine, so as to strike an object at a distance. We bend the bow, or wing the missile dart. Pope.

nted, in the Ionic and other orders; -- so called because of its arrangement at regulated distances.

attraction (Phys.), attraction acting between the molecules of bodies, and at insensible distances. -- Molecular weight (Chem.), the weight of a molecule of any gas or vapor as compared with the hydrogen atom as a standard; the sum of the atomic weights of the constituents of a molecule; thus, the molecular weight of…

s. Moment of a couple (Mech.), the product of either of its forces into the perpendicular distance between them. -- Moment of a force. (Mech.) (a) With respect to a point, the product of the intensity of the force into the perpendicular distance from the point to the line of direction of the force. (b) With respect to…

serves to dispel the darkness of night. The diameter of the moon is 2,160 miles, its mean distance from the earth is 240,000 miles, and its mass is one eightieth that of the earth. See Lunar month, under Month. The crescent moon, the diadem of night. Cowper.

Of little breadth; not wide or broad; having little distance from side to side; as, a narrow board; a narrow street; a narrow hem. Hath passed in safety through the narrow seas. Shak.

With a little margin or space; by a small distance; hence, closely; hardly; barely; only just; -- often with reference to an avoided danger or misfortune; as, he narrowly escaped.

e skull, the ratio of the transverse the base of the aperture to the nasion, which latter distance is taken as the standard, equal to 100.

The power or act of discovering ships or land at considerable distances.

another, including, more especially, the method of determining a ship's position, course, distance passed over, etc., on the surface of the globe, by the principles of geometry and astronomy.