Source : Webster's Revised Unabridged Dictionary (1913)

Reconcentration \Re*con`cen*tra"tion\, n.
   The act of reconcentrating or the state of being
   reconcentrated; esp., the act or policy of concentrating the
   rural population in or about towns and villages for
   convenience in political or military administration, as in
   Cuba during the revolution of 1895-98.