Definition of pteraspid in English:

pteraspid

Pronunciation /təˈraspɪd/

noun

  • An armoured, jawless fossil fish (ostracoderm) of the family Pteraspididae (formerly Pteraspidae), found in rocks of the Silurian and Devonian periods.

adjective

  • Of, relating to, or characteristic of the family Pteraspididae.

Origin

Late 19th century. From pteraspid-, taken as stem of scientific Latin Pteraspis Pteraspis see -id. Compare scientific Latin Pteraspidae, former family name.