1. Any
substance used to kill, repel, or control a specific strain of plant or animal life
considered by its user to be pests.
2. The act of killing someone for being annoying, or in some way
bothering you.
1. You should buy some pesticide to get ridof these roaches in your kitchen.
2. Antonio refused to quit talking during the movie, so I committed pesticide by bashing his face into a chair until he stopped breathing.
murder
fratricide suicide genocide poison herbicide
insecticide matricide patricide
infanticide