1. Any substance that causes injury, illness or death of a living organism
   "The environmental agency tested the water for poisons";
   - toxicant, poisonous substance
    
2. Anything that harms or destroys
   "the poison of fascism"

1. Kill with poison
   "She poisoned her husband"
    
2. Administer poison to
   "She poisoned her husband but he did not die"
    
3. Add poison to
   "Her husband poisoned her drink in order to kill her";
   - envenom [archaic]
    
4. Kill by its poison
   "this mushroom can poison"
    
5. Spoil something, to make unpleasant or nasty, or turn against something good
   "poison someone's mind"; "poison the atmosphere in the office"

Derived forms: poisoning, poisoned, poisons

Type of: alter, change, corrupt, debase, debauch, demoralise [Brit], demoralize, deprave, destructiveness, dose, drug, kill, misdirect, modify, pervert, profane, subvert, vitiate

Encyclopedia: Poison, neutron