单词	Placodermi
释义	Placodermi plural noun Plac·​o·​der·​mi : a class of extinct fishes with an armor of large bony plates and primitive jaw structures that has been taken as equivalent to Antiarcha plus Arthrodira but is now usually extended to include also the Acanthodii, Cycliae, and minor groups compare chondrichthyes placodermoid ¦⸗⸗¦dərˌmȯid adjective Word History Etymology New Latin, from plac- + Greek derma skin
随便看	postponing postpose postposed postposes postposing postposition postpositional postpositionally postpositions postpositive postpositively postpositives postprandial postprandially postpredicament postpresidential postprimary postprison postproduction postproductions postpubertal postpuberty postpubescent postpubescents postpubic

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