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1 definition found
 for Sun bath
From The Collaborative International Dictionary of English v.0.48 :

  Sun \Sun\, n. [OE. sunne, sonne, AS. sunne; akin to OFries.
     sunne, D. zon, OS. & OHG. sunna, G. sonne, Icel. sunna, Goth.
     sunna; perh. fr. same root as L. sol. [root]297. Cf. Solar,
     1. The luminous orb, the light of which constitutes day, and
        its absence night; the central body round which the earth
        and planets revolve, by which they are held in their
        orbits, and from which they receive light and heat. Its
        mean distance from the earth is about 92,500,000 miles,
        and its diameter about 860,000.
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     Note: Its mean apparent diameter as seen from the earth is
           32' 4[sec], and it revolves on its own axis once in
           251/3 days. Its mean density is about one fourth of
           that of the earth, or 1.41, that of water being unity.
           Its luminous surface is called the photosphere, above
           which is an envelope consisting partly of hydrogen,
           called the chromosphere, which can be seen only through
           the spectroscope, or at the time of a total solar
           eclipse. Above the chromosphere, and sometimes
           extending out millions of miles, are luminous rays or
           streams of light which are visible only at the time of
           a total eclipse, forming the solar corona.
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     2. Any heavenly body which forms the center of a system of
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     3. The direct light or warmth of the sun; sunshine.
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              Lambs that did frisk in the sun.      --Shak.
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     4. That which resembles the sun, as in splendor or
        importance; any source of light, warmth, or animation.
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              For the Lord God is a sun and shield. --Ps. lxxiv.
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              I will never consent to put out the sun of
              sovereignity to posterity.            --Eikon
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     Sun and planet wheels (Mach.), an ingenious contrivance for
        converting reciprocating motion, as that of the working
        beam of a steam engine, into rotatory motion. It consists
        of a toothed wheel (called the sun wheel), firmly secured
        to the shaft it is desired to drive, and another wheel
        (called the planet wheel) secured to the end of a
        connecting rod. By the motion of the connecting rod, the
        planet wheel is made to circulate round the central wheel
        on the shaft, communicating to this latter a velocity of
        revolution the double of its own. --G. Francis.
     Sun angel (Zool.), a South American humming bird of the
        genus Heliangelos, noted for its beautiful colors and
        the brilliant luster of the feathers of its throat.
     Sun animalcute. (Zool.) See Heliozoa.
     Sun bath (Med.), exposure of a patient to the sun's rays;
     Sun+bear+(Zool.),+a+species+of+bear+({Helarctos+Malayanus">Sun bear (Zool.), a species of bear ({Helarctos Malayanus)
        native of Southern Asia and Borneo. It has a small head
        and short neck, and fine short glossy fur, mostly black,
        but brownish on the nose. It is easily tamed. Called also
        bruang, and Malayan bear.
     Sun beetle (Zool.), any small lustrous beetle of the genus
     Sun bittern (Zool.), a singular South American bird
        ({Eurypyga helias), in some respects related both to the
        rails and herons. It is beautifully variegated with white,
        brown, and black. Called also sunbird, and tiger
     Sun fever (Med.), the condition of fever produced by sun
     Sun gem (Zool.), a Brazilian humming bird ({Heliactin
        cornutus). Its head is ornamented by two tufts of bright
        colored feathers, fiery crimson at the base and greenish
        yellow at the tip. Called also Horned hummer.
     Sun grebe (Zool.), the finfoot.
     Sun picture, a picture taken by the agency of the sun's
        rays; a photograph.
     Sun spots (Astron.), dark spots that appear on the sun's
        disk, consisting commonly of a black central portion with
        a surrounding border of lighter shade, and usually seen
        only by the telescope, but sometimes by the naked eye.
        They are very changeable in their figure and dimensions,
        and vary in size from mere apparent points to spaces of
        50,000 miles in diameter. The term sun spots is often used
        to include bright spaces (called faculae) as well as dark
        spaces (called maculae). Called also solar spots. See
        Illustration in Appendix.
     Sun star (Zool.), any one of several species of starfishes
        belonging to Solaster, Crossaster, and allied genera,
        having numerous rays.
     Sun trout (Zool.), the squeteague.
     Sun wheel. (Mach.) See Sun and planet wheels, above.
     Under the sun, in the world; on earth. "There is no new
        thing under the sun." --Eccl. i. 9.
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     Note: Sun is often used in the formation of compound
           adjectives of obvious meaning; as, sun-bright,
           sun-dried, sun-gilt, sunlike, sun-lit, sun-scorched,
           and the like.
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