Scrabble?! PROGLOTTIDS

Definitions of PROGLOTTIDS in various dictionaries:

Cestoda is a class of parasitic worms in the flatworm phylum (Platyhelminthes). Most of the speciesand the best-knownare those in the subclass Eucestoda; they are ribbonlike worms as adults, known as tapeworms. Their bodies consist of many similar units, known as proglottids, which are essentially packages of eggs that are regularly shed into the environment to infect other organisms. Species of the other subclass, Cestodaria, are mainly fish parasites. All cestodes are parasitic; many have complex life histories, including a stage in a definitive (main) host in which the adults grow and reproduce, often for years, and one or two intermediate stages in which the larvae develop in other hosts. Typically the adults live in the digestive tracts of vertebrates, while the larvae often live in the bodies of other animals, either vertebrates or invertebrates. For example, Diphyllobothrium has at least two intermediate hosts, a crustacean and then one or more freshwater fish; its definitive