A destroyer. (R.) "Fire, the destructor and the artificial death of things."
2.
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.
3.
(Computers) In object-oriented programming, a function which destroys an object which was previously created by a different function.
... he stands as far above them as they above the lowest worm. And this leads us to the consideration of man, not merely as a mammal, but as "Anthropos," Homo sapiens, although he often degenerates into "Simia destructor." ... — The Whence and the Whither of Man • John Mason Tyler