regenerative

from The Collaborative International Dictionary of English v.0.48

Regenerative \Re*gen"er*a*tive\ (r?*j?n"?r*?*t?v), a.
   Of or pertaining to regeneration; tending to regenerate; as,
   regenerative influences. --H. Bushnell.
   [1913 Webster]

   {Regenerative furnace} (Metal.), a furnace having a
      regenerator in which gas used for fuel, and air for
      supporting combustion, are heated; a Siemens furnace.
      [1913 Webster]