1. \De*struc"tor\, n. [L., from destruere. See
   {Destroy}, and cf. {Destroyer}.]
   A destroyer. [R.]
   
         Fire, the destructor and the artificial death of
         things.                                  --Boyle.
   
   

2. \De*struct"or\, n.
   A furnace or oven for the burning or carbonizing of refuse;
   specif. (Sewage Disposal), a furnace (called in full
   
   {refuse destructor}) in which the more solid constituents of
      sewage are burnt. Destructors are often so constructed as
      to utilize refuse as fuel.
   
   

A function provided by a class in c++ and some other object-oriented languages to delete an object, the inverse of a constructor.