placoderm

n. [古生]盾皮鱼

词形变化

placoderms 复数 placoderms

释义与例句

n.
  1. 1.

    A member of an extinct paraphyletic class (†Placodermi) of jawed fish with armored heads and thoraces; the group lived during the Silurian and Devonian periods.

    生物
adj.
  1. 1.

    Pertaining to the paraphyletic class †Placodermi.

    生物

词源

From placo- + -derm, after German Placoderm.

来源：wiktionary