Entozoology is the scientific study of internal parasites that inhabit the bodies of animals. Other synonyms for entozoology include helminthology, parasitology, and parasitic zoology. These terms are often used interchangeably depending on the context in which the study is being conducted. While entozoology is primarily concerned with internal parasites, parasitology encompasses a broader range of parasites including ectoparasites and protozoans. Helminthology, on the other hand, deals specifically with parasitic worms. Though each term may have its own nuances, they all ultimately share a common goal: to further our understanding and control of the parasites that can affect our health and that of other animals.