Au

4 definitions found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  au \a.u.\ n.
     1. (Astron.) the unit of length equal to the mean distance of
        the Earth from the sun, about 93 million miles (150
        million kiometers); -- used almost exclusively in
        astronomy, or to describe astronomical distances.
  


     Syn: astronomical unit, AU, A.U.
          [WordNet 1.5]

From WordNet (r) 2.0 [wn]:

  Au
       n 1: a soft yellow malleable ductile (trivalent and univalent)
            metallic element; occurs mainly as nuggets in rocks and
            alluvial deposits; does not react with most chemicals
            but is attacked by chlorine and aqua regia [syn: {gold},
             {atomic number 79}]
       2: a unit of length used for distances within the solar system;
          equal to the mean distance between the Earth and the Sun
          (approximately 93 million miles or 150 million kilometers)
          [syn: {Astronomical Unit}]

From Virtual Entity of Relevant Acronyms (Version 1.9, June 2002) [vera]:

  AU
       Access Unit
       
       

From The Free On-line Dictionary of Computing (27 SEP 03) [foldoc]:

  au
       
          1.  The two character {country code} for Australia
          used in {Internet} {domain names}.
       
          2.  {audio}.
       
          (1995-02-15)