Source : Webster's Revised Unabridged Dictionary (1913)

Ascii \As"ci*i\, Ascians \As"cians\, n. pl. [L. ascii, pl. of
   ascius, Gr. ? without shadow; 'a priv. + ? shadow.]
   Persons who, at certain times of the year, have no shadow at
   noon; -- applied to the inhabitants of the torrid zone, who
   have, twice a year, a vertical sun.

Source : WordNet®

ASCII
     n : (computer science) a code for information exchange between
         computers made by different companies; a string of 7
         binary digits represents each character; used in most
         microcomputers [syn: {American Standard Code for
         Information Interchange}]

Source : Free On-Line Dictionary of Computing

ASCII
     
        {American Standard Code for Information Interchange}