plural noun Phys·e·ter·i·dae \ˌfisəˈterəˌdē\

Definition of Physeteridae

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

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Origin and Etymology of physeteridae

New Latin, from Physeter, type genus + -idae

Seen and Heard

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a brief usually trivial fact

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