ækˈænθoʊdiən

Definitions

1. noun

A member of an extinct order of armoured fish that were characterized by their spiny skin and a horizontal tail.

“During the fossil dig, the archaeologist discovered several acanthodian fossils in the sedimentary rock.”

2. adjective

Having spiny skin or bearing resemblance to acanthodians.

“The paleontologist described the newly discovered species as an acanthodian-like creature.”