solar

from The American Heritage® Dictionary of the English Language, 5th Edition.

• adjective Of, relating to, or proceeding from the sun.
• adjective Using or operated by energy derived from the sun.
• adjective Determined or measured in reference to the sun.

from The Century Dictionary.

• noun See sola.
• noun See sollar.
• noun In Roman and early medieval houses, a terrace, or balcony, or a room much exposed to the sun; a sollar.
• Of, pertaining or related to, or determined by the sun: as, the solar system; solar light; solar rays; solar influence.
• In astrology, born under the predominant influence of the sun; influenced by the sun.
• An electric lamp of the fourth class.

from the GNU version of the Collaborative International Dictionary of English.

• noun obsolete A loft or upper chamber; a garret room.
• adjective Of or pertaining to the sun; proceeding from the sun. See Solar system, below.
• adjective (Astrol.), obsolete Born under the predominant influence of the sun.
• adjective Measured by the progress or revolution of the sun in the ecliptic.
• adjective Produced by the action of the sun, or peculiarly affected by its influence.
• adjective See under Cycle.
• adjective See Day, 2.
• adjective an engine in which the energy of solar heat is used to produce motion, as in evaporating water for a steam engine, or expanding air for an air engine.
• adjective (Bot.) flowers which open and shut daily at certain hours.
• adjective an argand lamp.
• adjective a microscope consisting essentially, first, of a mirror for reflecting a beam of sunlight through the tube, which sometimes is fixed in a window shutter; secondly, of a condenser, or large lens, for converging the beam upon the object; and, thirdly, of a small lens, or magnifier, for throwing an enlarged image of the object at its focus upon a screen in a dark room or in a darkened box.
• adjective See under Month.
• adjective a paraffin oil used an illuminant and lubricant.
• adjective (Physics) certain substances, as the diamond, siulphide of barium (Bolognese or Bologna phosphorus), calcium sulphide, etc., which become phosphorescent, and shine in the dark, after exposure to sunlight or other intense light.
• adjective (Anat.) a nervous plexus situated in the dorsal and anterior part of the abdomen, consisting of several sympathetic ganglia with connecting and radiating nerve fibers; -- so called in allusion to the radiating nerve fibers.
• adjective See Sun spots, under Sun.
• adjective (Astron.) the sun, with the group of celestial bodies which, held by its attraction, revolve round it. The system comprises the major planets, with their satellites; the minor planets, or asteroids, and the comets; also, the meteorids, the matter that furnishes the zodiacal light, and the rings of Saturn. The satellites that revolve about the major planets are twenty-two in number, of which the Earth has one (see Moon.), Mars two, Jupiter five, Saturn nine, Uranus four, and Neptune one. The asteroids, between Mars and Jupiter, thus far discovered (1900), number about five hundred, the first four of which were found near the beginning of the century, and are called Ceres, Pallas, Juno, and Vesta.
• adjective telegraph for signaling by flashes of reflected sunlight.
• adjective See Apparent time, under Time.

from Wiktionary, Creative Commons Attribution/Share-Alike License.

• noun obsolete A loft or upper chamber forming the private accommodation of the head of the household in a medieval hall; a garret room.
• adjective Of or pertaining to the sun; proceeding from the sun; as, the solar system; solar light; solar rays; solar influence.
• adjective astrology, obsolete Born under the predominant influence of the sun.
• adjective Measured by the progress or revolution of the sun in the ecliptic; as, the solar year.
• adjective Produced by the action of the sun, or peculiarly affected by its influence.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• adjective relating to or derived from the sun or utilizing the energies of the sun