Hyperodontidae n 1: beaked whales; in some especially former classifications included in the family Physeteridae [syn: {Ziphiidae}, {family Ziphiidae}, {Hyperodontidae}, {family Hyperodontidae}]
Hyperodontidae \Hyperodontidae\ prop. n. A natural family of cetaceans comprising the beaked whales; in some, especially former, classifications it included in the family {Physeteridae}. Syn: Ziphiidae, family {Ziphiidae}, family {Hyperodontidae}. [WordNet 1.5]