1. 
   Lethiferous
   Le·thif'er·ous (le*thĭf'ẽr*ŭs) adjective [ Latin lethifer , letifer , from lethum , letum , death + ferre to bear, to bring: confer French léthifère .] Deadly; bringing death or destruc...
   Found op http://www.encyclo.co.uk/webster/L/32
   
   
2. 
   Lethiferous
   • (a.) Deadly; bringing death or destruction.
   Found op http://thinkexist.com/dictionary/meaning/lethiferous/
   
   
3. 
   lethiferous
   lethiferous Anything that causes or results in death; deadly; destructive.
   Found op http://www.wordinfo.info/words/index/info/view_unit/1175/
   
   

Tip: double click on a word to show its meaning.