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Webster 1913 Edition

Placoderm

Plac′o-derm

,

Noun.

[Gr.

πλάξ

,

πλακός

, tablet +

δέρμα

skin.]

(Paleon.)

One of the Placodermi.

Definition 2024

placoderm

placoderm

English

Noun

placoderm ‎(plural placoderms)

A member of an extinct group of fish with armored heads; the group lived during the Silurian and Devonian periods.

See also

Placodermi