GNU Collaborative International Dictionary of English

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Found 2 definitions

1.       
   Coss (kŏs), n. [Cf. Pers. kōs a road measure of about two miles; or Skr. krōça.] A Hindoo measure of distance, varying from one and a half to two English miles.  Whitworth.
   
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2.       
   Coss, n. [It. cosa.] A thing (only in phrase below).
   
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   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.]
   
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