Tænia is a medical term used to refer to a type of parasitic flatworm commonly found in the intestines of humans and other animals. This term can also be used to refer to a genus of tapeworms. While the term "tænia" is commonly used in medical literature, there are several synonyms that can be used to describe this parasite. Some of the synonyms for tænia include tapeworm, cestode, flatworm, and parasitic worm. These synonyms can be useful when trying to avoid repeating the same term repeatedly in a text or when looking for alternative ways to describe the same concept.