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Definition of plesiadapiform in English:

plesiadapiform

Pronunciation /ˌpliːzɪˈadəpɪfɔːm/

noun

  • A primitive primate belonging to the extinct infraorder Plesiadapiformes, known chiefly from Palaeocene fossil remains found in North America and Europe.

adjective

  • Of or relating to the infraorder Plesiadapiformes.

Origin

1970s; earliest use found in Science. From scientific Latin Plesiadapiformes, infraorder name from Plesiadapis, genus name + -iformes.