ˌbyüsəˈfaləˌdē noun plural
Usage: capitalized
Etymology: New Latin, from Bucephalus, type genus + -idae
: a family of atypical digenetic trematodes that parasitize the intestines of various fishes and that have the mouth in the middle of the ventral surface, a saccular intestine, a single anterior sucker, and a posterior genital pore