Related Clues:

• Contaminate
• Arrow application
• Bane
• Snake venom, for example
• "Name yer ---"
• Plague cause
• Botulin, e.g.
• Antibody producer
• Snake venom, for one
• Exterminator's option
• Bad thing to take in
• Lethal agent
• Negative influence
• Something harmful
• Toxic substance