Raillietina

noun
Rail·​lie·​ti·​na | \ ˌrāl-yə-ˈtī-nə How to pronounce Raillietina (audio) \

Medical Definition of Raillietina

: a large genus of armed cyclophyllidean tapeworms (family Davaineidae) of which the adults are parasitic in birds, rodents, or rarely humans and the larvae are parasitic in various insects