|1.||the star at the centre of our solar system. It is a gaseous body having a highly compressed core, in which energy is generated by thermonuclear reactions (at about 15 million kelvins), surrounded by less dense radiative and convective zones serving to transport the energy to the surface (the photosphere). The atmospheric layers (the chromosphere and corona) are normally invisible except during a total eclipse. Mass and diameter: 333 000 and 109 times that of earth respectively; mean distance from earth: 149.6 million km (1 astronomical unit)Related: solar|
|2.||any star around which a planetary system revolves|
|3.||the sun as it appears at a particular time or place: the winter sun|
|4.||the radiant energy, esp heat and light, received from the sun; sunshine|
|5.||a person or thing considered as a source of radiant warmth, glory, etc|
|6.||a pictorial representation of the sun, often depicted with a human face|
|7.||poetic a year or a day|
|8.||poetic a climate|
|9.||archaic sunrise or sunset (esp in the phrase from sun to sun)|
|10.||catch the sun to become slightly sunburnt|
|11.||place in the sun a prominent or favourable position|
|12.||nautical shoot the sun, take the sun to measure the altitude of the sun in order to determine latitude|
|13.||touch of the sun slight sunstroke|
|14.||under the sun, beneath the sun on earth; at all: nobody under the sun eats more than you do|
|—vb , suns, sunning, sunned|
|15.||to expose (oneself) to the sunshine|
|16.||(tr) to expose to the sunshine in order to warm, tan, etc|
|[Old English sunne; related to Old High German sunna, Old Frisian senne, Gothic sunno]|
|sun (sŭn) Pronunciation Key
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Often Sun. A medium-sized, main-sequence star located in a spiral arm of the Milky Way galaxy, orbited by all of the planets and other bodies in our solar system and supplying the heat and light that sustain life on Earth. Its diameter is approximately 1.4 million km (868,000 mi), and its mass, about 330,000 times that of Earth, comprises more than 99 percent of the matter in the solar system. It has a temperature of some 16 million degrees C (27 million degrees F) at its core, where nuclear fusion produces tremendous amounts of energy, mainly through the series of reactions known as the proton-proton chain. The energy generated in the core radiates through a radiation zone to an opaque convection zone, where it rises to the surface through convection currents of the Sun's plasma. The Sun's surface temperature (at its photosphere) is approximately 6,200 degrees C (11,200 degrees F). Turbulent surface phenomena analogous to the Earth's weather are prevalent, including magnetic storms, sunspots, and solar flares. The Sun was formed along with the rest of the solar system about 4.5 billion years ago and is expected to run out of its current hydrogen fuel in another 5 billion years, at which point it will develop into a red giant and ultimately into a white dwarf. See Table at solar system. See Note at dwarf star.
Sunn. Sun Microsystems. Hackers remember that the name was originally an acronym, Stanford University Network. Sun started out around 1980 with some hardware hackers (mainly) from Stanford talking to some software hackers (mainly) from UC Berkeley; Sun's original technology concept married a clever board design based on the Motorola 68000 to BSD Unix. Sun went on to lead the worstation industry through the 1980s, and for years afterwards remained an engineering-driven company and a good place for hackers to work. Though Sun drifted away from its techie origins after 1990 and has since made some strategic moves that disappointed and annoyed many hackers (especially by maintaining proprietary control of Java and rejecting Linux), it's still considered within the family in much the same way DEC was in the 1970s and early 1980s.
(Heb. shemesh), first mentioned along with the moon as the two great luminaries of heaven (Gen. 1:14-18). By their motions and influence they were intended to mark and divide times and seasons. The worship of the sun was one of the oldest forms of false religion (Job 31:26,27), and was common among the Egyptians and Chaldeans and other pagan nations. The Jews were warned against this form of idolatry (Deut. 4:19; 17:3; comp. 2 Kings 23:11; Jer. 19:13).