Etymology

acanthodian

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Today it means: A member of a group of extinct fish (Acanthodii) that existed from the Silurian to the Permian period. Full definition →

First used First attested in the mid 19th century.
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The story

From taxonomic name Acanthodii + English -ian.

First known use, by meaning

  • First attested in the mid 19th century. A member of a group of extinct fish (Acanthodii) that existed from the Silurian to the Permian period.
  • First attested in the mid 19th century. Pertaining to Acanthodii.

Etymology from Wiktionary, CC BY-SA 4.0.