vermination noun. 
[vǝ:mɪ'neɪʃ(ǝ)n] Now 
rare or 
obsolete. 
E17.[Latin verminatio(n-), formed as VERMINATE: see -ATION.]1.  The breeding, growth, or production of (esp. parasitic) vermin. 
E17-E18.2.  The fact of being infested with parasites; a disease due to this. 
E19.  [TahlilGaran] English Dictionary ▲