Placodermi

plural noun
Plac·​o·​der·​mi

Definition of Placodermi

: 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

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Other Words from Placodermi

placodermoid \ ¦⸗⸗¦dərˌmȯid \ adjective

History and Etymology for Placodermi

New Latin, from plac- + Greek derma skin

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Dictionary Entries Near Placodermi

placoderm

Placodermi

placodont

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Cite this Entry

“Placodermi.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Placodermi. Accessed 19 Sep. 2021.

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