Source : Webster's Revised Unabridged Dictionary (1913)

Coss \Coss\ (k[o^]s), n. [Cf. Pers. k[=o]s a road measure of
   about two miles; or Skr. kr[=o][,c]a.]
   A Hindoo measure of distance, varying from one and a half to
   two English miles. --Whitworth.

Coss \Coss\, n. [It. cosa.]
   A thing (only in phrase below).

   {Rule of Coss}, an old name for Algebra. [It. regola di cosa
      rule of thing, the unknown quantity being called the cosa,
      or the thing.]

Source : WordNet®

coss
     n : an Indian unit of length having different values in
         different localities [syn: {kos}]

Source : Free On-Line Dictionary of Computing

COSS
     
        {Common Object Services Specification} in {CORBA}.