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Definition of physeteroid in English:

physeteroid

Pronunciation /fʌɪˈsiːtərɔɪd/

noun

Zoology

  • A member of the superfamily Physeteroidea, which includes the sperm whale, the pygmy and dwarf sperm whales (genus Kogia), and their fossil relatives.

adjective

Zoology

  • Of or relating to the superfamily Physeteroidea; resembling a sperm whale.

Origin

Late 19th century; earliest use found in Nature: a weekly journal of science. From physeter + -oid, after scientific Latin Physeteroidea, superfamily name.