Nematocide is a term used to describe a substance used to kill nematodes, which are parasitic worms that can cause damage to plants and animals. Synonyms for nematocide include nematicide, anthelminthic, vermifuge, and dewormer. Nematicide is the most commonly used synonym for nematocide and refers to any chemical substance used to kill nematodes. Anthelminthic is a broad term used to describe any substance used to kill parasitic worms or helminths. Vermifuge refers to any substance used to expel or prevent the development of parasitic worms in animals, while dewormer specifies a substance used specifically to rid animals of intestinal worms. These synonyms are often used interchangeably and depend on the context in which they are used.