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Glite Dictionary
Acanthopterygii

Acanthopterygii

9.9
A group of fish with sharp bony spines in their fins, like many common sea and freshwater fish
  • noun
  • /ˌækənˈθɒpəˌtɛrɪdʒiːaɪ/
  • Specialized
translation icon : Acanthopterygii
  • The Acanthopterygii, which includes species like the tuna and swordfish, are known for their sharp fin spines.

Examples

  • The traditional taxonomic categories of Acanthopterygii and Percomorpha may need to be changed as a result of current phylogeny.

    Academic text (2010)

  • Many popular aquarium fish belong to the Acanthopterygii group, showcasing a variety of shapes and colors.

  • Fishermen often target Acanthopterygii due to their speed and fighting ability when caught.

Synonyms

superorder Acanthopterygii
vsAcanthopterygii
  • Specialized
9.9

A large group of fish with bones and sharp spines in their fins, like perch and tuna

is identical in scope but describes fin structures as sharp bony spines

Compounds

superorder Acanthopterygii
  • Specialized
9.9

A large group of fish with bones and sharp spines in their fins, like perch and tuna

Surface Forms

Acanthopterygii singular
Acanthopterygies plural

Morphology

Acanthopterygii = acanth + pteryg + ii

A technical taxonomic formation from Greek combining forms that are not productive or recognizable English morphemes for a B1 learner, so the meaning cannot be reliably derived from the parts.

Etymology

Acanthopterygii comes from Greek parts acantho- meaning 'spine' or 'thorn' and -pterygii meaning 'fin' or 'wing', the same 'ptero' you find in pterodactyl. So, Acanthopterygii literally means 'spiny-finned', which matches this large group of fish that have sharp, bony fin spines.