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- Solar - a. - A loft or upper chamber; a garret room.
- Solar - a. - Of or pertaining to the sun; proceeding from the sun; as, the solar system; solar light; solar rays; solar influence. See Solar system, below.
- Solar - a. - Born under the predominant influence of the sun.
- Solar - a. - Measured by the progress or revolution of the sun in the ecliptic; as, the solar year.
- Solar - a. - Produced by the action of the sun, or peculiarly affected by its influence.
- Solaria - pl. - of Solarium
- Solarium - n. - An apartment freely exposed to the sun; anciently, an apartment or inclosure on the roof of a house; in modern times, an apartment in a hospital, used as a resort for convalescents.
- Solarium - n. - Any one of several species of handsome marine spiral shells of the genus Solarium and allied genera. The shell is conical, and usually has a large, deep umbilicus exposing the upper whorls. Called also perspective shell.
- Solarization - n. - Injury of a photographic picture caused by exposing it for too long a time to the sun's light in the camera; burning; excessive insolation.
- Solarize - v. t. - To injure by too long exposure to the light of the sun in the camera; to burn.
- Solarize - v. i. - To become injured by undue or too long exposure to the sun's rays in the camera.
- Solarized - imp. & p. p. - of Solarize
- Solarizing - p. pr. & vb. n. - of Solarize
- Solary - a. - Solar.
- Eclipse - n. - An interception or obscuration of the light of the sun, moon, or other luminous body, by the intervention of some other body, either between it and the eye, or between the luminous body and that illuminated by it. A lunar eclipse is caused by the moon passing through the earth's shadow; a solar eclipse, by the moon coming between the sun and the observer. A satellite is eclipsed by entering the shadow of its primary. The obscuration of a planet or star by the moon or a planet, though of the nature of an eclipse, is called an occultation. The eclipse of a small portion of the sun by Mercury or Venus is called a transit of the planet.
- Spectroscope - n. - An optical instrument for forming and examining spectra (as that of solar light, or those produced by flames in which different substances are volatilized), so as to determine, from the position of the spectral lines, the composition of the substance.
- 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.
- Nebula - n. - A faint, cloudlike, self-luminous mass of matter situated beyond the solar system among the stars. True nebulae are gaseous; but very distant star clusters often appear like them in the telescope.
- Megascope - n. - A modification of the magic lantern, used esp. for throwing a magnified image of an opaque object on a screen, solar or artificial light being used.
- Cosmical - a. - Pertaining to the solar system as a whole, and not to the earth alone.
- Moon - n. - A secondary planet, or satellite, revolving about any member of the solar system; as, the moons of Jupiter or Saturn.
- Orrery - n. - An apparatus which illustrates, by the revolution of balls moved by wheelwork, the relative size, periodic motions, positions, orbits, etc., of bodies in the solar system.
- Ray - n. - A line of light or heat proceeding from a radiant or reflecting point; a single element of light or heat propagated continuously; as, a solar ray; a polarized ray.
- Copernican - a. - Pertaining to Copernicus, a Prussian by birth (b. 1473, d. 1543), who taught the world the solar system now received, called the Copernican system.
- Satellite - n. - A secondary planet which revolves about another planet; as, the moon is a satellite of the earth. See Solar system, under Solar.
- Mean - a. - Average; having an intermediate value between two extremes, or between the several successive values of a variable quantity during one cycle of variation; as, mean distance; mean motion; mean solar day.
- Concurrent - n. - One of the supernumerary days of the year over fifty-two complete weeks; -- so called because they concur with the solar cycle, the course of which they follow.
- Ring - n. - An instrument, formerly used for taking the sun's altitude, consisting of a brass ring suspended by a swivel, with a hole at one side through which a solar ray entering indicated the altitude on the graduated inner surface opposite.
- Mars - n. - One of the planets of the solar system, the fourth in order from the sun, or the next beyond the earth, having a diameter of about 4,200 miles, a period of 687 days, and a mean distance of 141,000,000 miles. It is conspicuous for the redness of its light.
- Fraunhofer lines - - The lines of the spectrun; especially and properly, the dark lines of the solar spectrum, so called because first accurately observed and interpreted by Fraunhofer, a German physicist.
- Green - superl. - Having the color of grass when fresh and growing; resembling that color of the solar spectrum which is between the yellow and the blue; verdant; emerald.
- Solar - a. - Of or pertaining to the sun; proceeding from the sun; as, the solar system; solar light; solar rays; solar influence. See Solar system, below.
- Solar - a. - Measured by the progress or revolution of the sun in the ecliptic; as, the solar year.
- Planet - n. - A celestial body which revolves about the sun in an orbit of a moderate degree of eccentricity. It is distinguished from a comet by the absence of a coma, and by having a less eccentric orbit. See Solar system.
- Whole - a. - Containing the total amount, number, etc.; comprising all the parts; free from deficiency; all; total; entire; as, the whole earth; the whole solar system; the whole army; the whole nation.
- Actinometry - n. - The measurement of the force of solar radiation.
- Actinism - n. - The property of radiant energy (found chiefly in solar or electric light) by which chemical changes are produced, as in photography.
- Actinometric - a. - Pertaining to the measurement of the intensity of the solar rays, either (a) heating, or (b) actinic.
- Comet - n. - A member of the solar system which usually moves in an elongated orbit, approaching very near to the sun in its perihelion, and receding to a very great distance from it at its aphelion. A comet commonly consists of three parts: the nucleus, the envelope, or coma, and the tail; but one or more of these parts is frequently wanting. See Illustration in Appendix.