sun
[sʌn]
n
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)
any star around which a planetary system revolves
the sun as it appears at a particular time or place
the winter sun
the radiant energy, esp heat and light, received from the sun; sunshine
a person or thing considered as a source of radiant warmth, glory, etc
a pictorial representation of the sun, often depicted with a human face
a year or a day
a climate
sunrise or sunset (esp in the phrase from sun to sun)
vb
to expose (oneself) to the sunshine
to expose to the sunshine in order to warm, tan, etc
- 习惯用语
- catch the sun to become slightly sunburnt
- place in the sun a prominent or favourable position
- shoot the sun to measure the altitude of the sun in order to determine latitude
- take the sun 同
- touch of the sun slight sunstroke
- under the sun on earth; at all
- beneath the sun 同
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