Diphyllobothriidae
noun plural
Di·phyl·lo·both·ri·i·dae
| \ -ˈrī-ə-ˌdē
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Medical Definition of Diphyllobothriidae
: a family of tapeworms that belong to the order Pseudophyllidea and have a complex life history with more than one intermediate host and the scolex of the adult usually grooved and lacking suckers or hooks