Source : Webster's Revised Unabridged Dictionary (1913)

Contredanse \Con"tre*danse`\, n. [Cf. F. contredanse (fr. E.
   {Country-dance}). ]
   1.
      (a) A dance in which the partners are arranged face to
          face, or in opposite lines.
      (b) The quadrille. [Obs.]

   2. (Music) A piece of music in the rhythm of such a dance.

Source : WordNet®

contredanse
     n : a type of folk dance in which couples are arranged in sets
         or face one another in a line [syn: {country-dance}, {country
         dancing}, {contra danse}, {contradance}]
     v : perform a contradance [syn: {contradance}, {country-dance},
         {contra danse}]