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.

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

Source: Webster's Revised Unabridged Dictionary (1913)