Definition of acanthodian in English:

Share this entry


Pronunciation: /ˌakənˈTHōdēən/


A small spiny-finned, jawed fossil fish of a group found chiefly in the Devonian period.
Example sentences
  • The first jawed fish in the fossil record are the acanthodians, which first occur in the Late Silurian.
  • But the treasure I did find was in the form of a beautifully preserved large set of fossil fish jaws belonging to an acanthodian.
  • In addition, there are archaic elements, such as the antiarch and arthrodire placoderms as well as acanthodians.


Mid 19th century: from modern Latin Acanthodii (from acantho-) + -an.

For editors and proofreaders

Syllabification: ac·an·tho·di·an

Share this entry

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.