Physeteridae

plural noun

Phys·​e·​ter·​i·​dae

ˌfisəˈterəˌdē

: a family of whales that includes the sperm whales, pygmy sperm whale, various related extinct forms, and formerly also the beaked whales compare physeteroidea

Word History

Etymology

New Latin, from Physeter, type genus + -idae

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