Coss (k?s), n. [Cf. Pers. ks a road measure of about two miles; or Skr. kra.]

A Hindoo measure of distance, varying from one and a half to two English miles.



© Webster 1913.

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.]


© Webster 1913.

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