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Definition of osteolepiform in English:

osteolepiform

Pronunciation /ˌɒstɪəʊˈlɛpɪfɔːm/

adjective

  • Of, relating to, or designating fishes of the extinct, chiefly Devonian, sarcopterygian order Osteolepiformes, which is thought to have been the evolutionary precursor of the tetrapods and was characterized by the possession of thick scales, one of which (at the base of the fins) was conspicuously enlarged.

noun

  • An osteolepiform fish.

Origin

1940s. From Osteolep- (in scientific Latin Osteolepis, genus name + -iform, after scientific Latin Osteolepiformes, order name.